I would like to suggest using mwave.com, and selecting their catalog from the top left of the website. I have ordered thousands of dollars worth of hardware here to build computers.
To compare computer parts to see what is the best part for you to buy, check out
www.anandtech.com. There on the top of their page, click the tab pertaining to the type of part you're currently considering buying, and there tests are ran and lots of high-end computer parts and you'll find what you need to buy according to anandtech's benchmarks.
You will need:
-Case with power supply. I would sugggest an Antec case, because of the high quality power supply that is also very quiet, but any will do at least 350W+.
-Motherboard/CPU Bundle (easier this way so you know the processor and memory you get fits your motherboard). Just about all motherboards now will come with onboard LAN and onboard sound, so that takes care of buying a network card and a sound card. Epox is one of my favorite brands for gaming motherboards; but Abit, Asus, and Gigabyte make wonderful boards as well.
-Memory. For a high quality gaming machine, go ahead and invest in 1GB of RAM, maybe more depending on how much money you're wanting to spend. Also, from just my experience, the mwave brand memory from the site I directed you to is great memory.
-Video Card. Once again for a gaming machine, it seems like the Radeon 9800 Pro has been the way to go in the past couple months, but I haven't done any research lately.
-Hard Drive. Get an IDE hard drive that will suit your own needs as far as space. I would suggest western digital, seagate or maxtor; but any will do.
-CD Writer/ROM. I would suggest going on and getting a CD-R/CD-RW, because they are so cheap now. Sony I believe makes one of the cheapest and that's a great brand for CD Drives.
-Floppy. May as well go ahead and get a Sony floppy as well for the 12? bucks they cost. Never hurts to have a floppy for that small price, even if you don't ever use it anymore.
-Speakers
-Monitor
-Keyboard/Mouse
-Operating System
At
http://www.mwave.com/mwave/barespec.hmx? you will find information about barebone systems from mwave.com. I have never ordered a barebone before, because I've always built my own, but I'm sure they'll treat you well.
There is honestly nothing to building a computer, but if something goes wrong that's where old experience comes into play. Although, there's nothing you can't figure out using
www.google.com. Good luck friend
Scott