how many times do I have to read posts where the OP says something like "I don't know much" and then the first reply is "build your own"?
Not everyone has the knowledge or desire to build their own. Sure it might be the cheapest way, but you can still get a good PC for reasonable money and built for you.
Jebb your list is fine, the only suggestion I would make is to read as many articles on this and other websites to help you make specific brand choices within your general range of items. Specifically, while I like ASUS products, is that the best model for your PC? There could be another that will do everything you need and save a bit of money.
There are a ton of choices with PSU's...look into those as well before you make your decision.
jebb7 has picked out the exact same parts as I have, except I've got a 1000w Power supply, and a slightly different motherboard. Any who, I reccomend heading to Cyber Power PC, and assembling the parts there. I am only at just under $1300, and mine has the exact same main parts!
just make sure the power supply is Corsiar or Thermaltake or a good after market and not cyberpowers Xtremegear garbage. thats like putting a cancerous kidney into a healthy body.... it will fry the other components.
also, get 4gb x 2 config so you can easily upgrade in a few years.