Adobe CS4
Photoshop. I've got the most experience with this image editor, after Gimp.
Dreamweaver. No experience, I haven't needed it so far, and haven't played around with it either.
Illustrator. Spent a couple of hours fiddling around, that's it.
InDesign. RAEG HATE REAG.
Flash. Pretty much the same as Illustrator, I've only spent an hour on it.
Terragen2. The free version. But as I'm not going to be paid by this project, I don't think there's any problem. Only had this on my computer for around two hours. If I use this, it'll only be to get source pictures for Ps.
Audacity. Nothing here, but have worked with Cubase for a few weeks.
Good time for me to walk in on this
Opinions on your skills, and how well they'll help (and notes I can provide):
Adobe CS4- I'm only skilled with 3, so I don't know everything new in 4, so I won't be too much help there.
Photoshop- Definitely a given. Easy enough to learn, not too hard to master. With this, you should be able to get most things taken care of that are requested to you. Always work either 72dpi or 300dpi, depending on the quality level you, or your client, want. And, for the love of God, don't forget to save often, and optimize your work when sending (whether it be the raw PSD or a saved for web PNG, JPG or whatever. Small files are always a good thing; as are system resources.)
Dreamweaver- Unfortunately, I lack skill with this. I only learned in GoLive! So it's a little iffy to transition. I won't be much help here.
Illustrator- I advise you get some skill in this area. Vector work can be very cheap on system resources, as well as render very well when enlarging or saving for web at larger sizes and whatnot (since pixelation is virtually impossible, even when shrinking; quality won't diminish so easily, provided you balance it out). 300dpi isn't much to worry about, considering the vector part of it. However, for more freedom with the drawing and vectoring, Flash, I would advise more.
Flash- If you want the freedom you want in Illustrator, this is where to go; however, drawings won't have as much impact as you would get from Illustrator. However, animation isn't too hard to work with, provided you know what you're doing, providing an alternative form of impact. Know how well the relationships between software work in order to get things to look right.
InDesign- Best program I use with anything involving PDF document making or print media (though Acrobat is more official in direction). All I can really say in regards to this is to learn as much of it as you can. Style sheets are your best friend here. Especially when you deal in walls of text, and many fonts and styles. Style sheets will minimize work dramatically. This can apply to all other programs that provide this function (Especially Dreamweaver with Cascading Style Sheets (CSS for short; not to be confused with Character Style sheet)). Take a typography course to learn the full extent of just how much of a blessing this function can be. Fonts are more involved than you think. And remember the difference between Paragraph and Character Style sheets. One effects both, and the other effects only the font/words involved. Simply, Paragraph:Character :: Major:Minimal.
Note/reminder for all of the above: I hope you're familiar with trim, registration, and to remember to display CMYK on print jobs, and RGB for web/digital jobs when working on them. I've made those mistakes a few times, and things didn't turn out too well. Let's say, dealing with the teachers about those flaws is a pain when getting a good score. And don't forget to almost always work with a 50% grey background (even your desktop if it calls for it). The neutral color will allow you to best interpret the colors you are working with. And one last thing; with most any project; especially in print. I advise you print a 100%, a 50%, a 25%, and a 15% scale version of your work. Make sure it'll look good in any size, even if made huge, make sure it'll look good at a distance, if smaller, make sure it'll print properly; and take notes on where to adjust in case you do need to shrink it.
If you have intention to have any mixed media (vector and photo and etc.), multi-task; make use of anything you can make use of. Illustrator/Flash for the vector parts (since it scales epically, especially between programs. And don't fear the scale of them, PS can work with the rest later. Like I said, Vector is not rasterized (pixels), so it won't suffer quality loss when scaled), Photoshop for photo manipulation, and InDesign for arranging everything in a print/PDF document.
Terragen 1&2- If you want a good easy quick BG for any works, this is good to use. But I would advise picking up a camera, or looking for stock photos for more refined work. Especially if your machine isn't up to scratch to make crazy-realistic landscapes for more artsy pictures/projects.
Audacity- Unfortunately, all I know about this program is how convert songs into karaoke tracks. Not bad if you like a background beat in a song, but don't want the lyrics. For example, an animation I made for a Flash project, I used a TTGL track, removed the lyrics, and tied it in with the clip. Worked well.
Aside Google, Here's a good Stock Photo site I've been introduced to in one of my design classes that should help a bit.
Much of it is pay though:
Stock.xchngeI don't know how much help I can be. I only have my Associates (of Science) Degree in Graphic Design in a Florida College. Like I said, I don't know how effective I'll be, but as a bit of background, I really lucked out with the teachers that I got when learning (they focused on the creative method, than learning programs (though they knew enough about them to still teach them), and are rather well experienced, and freaking difficult to pass their classes). So, considering that, maybe I'm just selling myself short.
I'll see what I can do; I can't think up anything at the moment though. I'll come back to you tomorrow.
EDIT: Just shifted some advice where it's more relevant. Like scaling, and such. Since it's a more universal concept. I also forgot to add in my opinion about InDesign. There you go.