Surprise, surprise, MZ is pimping an HP!No, but seriously, some of these computers are
way overkill for what JoshuaFH needs.
Intel iSeries is great, but not so great for budget. AMD's new A-series "Fusion" chipsets (A4, A6, etc) are a little less powerful and a little more budget friendly. ASUS + nVidia are both good brands, but are generally aimed at folks looking to do higher end things (Crysis 2, CAD, and Photoshop come to mind.) 4GB RAM would probably be ideal, but you can scrape by on 3GB.
Food chain of processors: single core (older Intel pentiums, AMD V-Series, Intel Atom are pretty much all you'll see)<dual core(newer Intel Celerons, AMD Athalon<Turion<Phenoms), A4, i3, A6, i5, quad core (the rest of the Phenoms that aren't six-core), quad core i5 (very rare on shelves), A8, i7, 6-core (Phenom<Opteron). Some people will put the i7 over the 6-core, but I prefer physical hardware to virtual.
To run DF, what you need to look at is components. The higher end, the better, to a point. Since it only uses one core and a max of just over 2GB RAM, getting speed from different components is crucial. The higher the clock speed on the processor (the whatever.whateverGHz), the speed and type of the RAM (DDRwhatever and PCwhatever, higher is better in both cases.) Another thing you can look for is cache. (That'll be whateverMB. Again, higher is better.)
Most often, a retail salesman will not know
any of this stuff, and worse, a commission-based salesman just may make it up, if they don't have any scruples. A very easy way (on Windows 7) to compare computers with your own eyes is to get your hands on it, go to the start menu, find "Computer", right click, and click properties. The splash screen there will tell you a) what kind, how many, and how fast the processors are, b) how much RAM it has, and c) the model number of the computer (so that you can research it later.) If you are dealing with a patient salesperson, ask if you can get a spec sheet or google the specific machine's specs. If the salesman is not patient (or does not seem very tech savvy, go see someone else.)
Personal preference time: (obviously) HP is my number 1 choice. All of HPs testing and damage-proofing on new computer models is done by the Department of Defense. Compaq is their budget line, but they don't put as much work into Compaq as they do HP branded stuff. #2 is ASUS. They've been in business a long, long time and know what they're doing with computer components. However, most of their machines are aimed at high end gamers. #3 is Lenovo. They bought the IBM PC division, and have been making a lot of business machines with it. Another decent brand is Toshiba. Mind you, they make
everything that has electronics in it (like tvs, air conditioners, fridges,) so computers are not specifically what they do, but they don't seem to do a terrible job at putting components in a box.
Don't buy: Sony (overpriced,) Acer/Gateway (they make junk that's inexpensive, but it'll probably fall apart in a year or two.)
If you want a desktop but size is a concern, you could always go with an
all-in-one, or a
slimline model.
I hope you found at least a little bit of this enlightening.