Thanks for all the replies and helpful information. Lots of good tips.
I think I have two issues that you all shed some light on. One is that my Smelters are already linked to other SPs, like my coal, flux, etc. So I guess that's why the steel bars are disabled, even though I had plenty of Pig Iron. If I have links for the Smelters already, I guess it wouldn't "take from anywhere", and I would have to manually link the Smelters to the Pig Iron SP. The answer would be to use links very sparingly as suggested.
The other issue is that all of my dwarves are all constantly busy, yes. My current fortress has about 150 in it, and I generally have only a few idle. Many times the idle numbers are in the single digits. Many of them are praying because I built a lot of temples to separate gods. One general temple for everyone just doesn't seem to make them happy. Many others are doing all hauling, working, and building duties. I do use Dwarf Therapist, couldn't live without it I don't think, and most dwarves are set to all hauling duties (all the way right on the Labors tab). I thought idle dwarves were unhappy dwarves, so I like to keep them all busy. Maybe I should reevaluate that game plan.
Yes, bins are a blessing and a curse. I have been reading about the bugs they sometimes create, especially with beekeeping, which I think I finally have all worked out.
I'm aware of the fat fingers issue, and always try to check that I didn't switch something on/off that shouldn't be because I pressed a wrong key somewhere. Especially in the (o) general orders section, or when setting up stockpiles (like keeping Animals accidentally turned on...grrr).
Urist, why did you suggest gobblets not be stored in a stockpile? I don't seem to have a major problem with that. In my dining room, I have them mixed in with my food, and the dwarves seem to use them for the most part. I also created my first tavern, and they seem to be using them there with a separate gobblet stockpile. I do get a few that get disgruntled that they are drinking without a gobblet for some reason, but I don't think it's that many. If you don't use a stockpile for them, how do you handle them?
Thanks again for everyone's input. I don't know how this game slipped under my radar for so long, because this is right up my alley. These ASCII type games (although I'm using the Spacefox graphics), not much in the way of graphics, and you can let your imagination run wild. Coming from games like Dungeon Crawl Stone Soup, this game is similar with about 1000 layers added to it. When I first started about a month ago, I tried the game without the starter pack. While still fun without it, Dwarf Therapist I think gives you the information and control that the game should, without making it a cheating tool. This is why I don't use quantum stockpiles really. Although I have used them to try them out, it kind of breaks the immersion for me, and I don't think it was the way the game was intended. Having 500 stone piled up on one square just doesn't seem "real" to me. Just my opinion. I only use them sparingly, like clearing out stone from an area to make it "neat" looking, or maybe with mine carts, which I've tried, by having the Stop dump items onto one stockpile square, but even then doesn't seem right.
Anyway, I just broke through a cavern below, and I set up some large rooms to start growing some indoor grass and moss for grazing. Have to get my animals inside! Lots of work to be done. Happy dwarfing everyone!