How'd I buy new PC?

what's a good place to buy pre-built or custom-built PCs? I'd build one myself but I'm a big fucking n00b and dangerously prone to static electricity.

I'm looking to spend around $1200 for a new PC (to run Vista but mostly b\c of DX10). My only requirements for the new computer is to have 2GB of RAM and a Dual Core Duo 2 CPU (preferably greater than E6400). However, it seems I can't find any PC from retail or the usual online places (DELL, HP) with a CPU better than Core Duo 2 E6400 (looking for atleast e6600). Am I overdoing it with the CPU?

   ESD is a non-issue if you build on linoleum while not wearing a sweater. I learned to build my own boxes at 55 and I'm a right brained English major.
    You could try a local shop and ask the resident geeks what they charge to assemble your parts on a private commission. Go here;
http://forums.anandtech.com/default.aspx
   You'll learn what's good and what's a headache.
   Your cpu could have impressed a Cray Supercomputer of a few years back. Why the DX10? Video games or rendering engine?

   Pricewatch.com for shopping
   Resellerratings.com to check the vendor
   Newegg.com for purchase or price comparisons.

   Building a box is 95% research on the components and 5% monkey work assembly. Puters are very by the book. Use the manual and ask questions if you're stumped. The motherboard mfg's have forums that support those boards.

   If you build it you'll be able to keep it clean, check out it's cooling and replace and/or upgrade it's parts.
   Vista will likely follow previous OS releases and need a year to get the bugs worked out. The rule used to be to at least wait for the first service pack before buying.