I highly, highly recommend http://hardforum.com/forumdisplay.php?f=40 for build your own pc advice. There are some very knowledgeable and helpful people that frequent that forum (in my experience, more technical than tomshardware and reddit).

If by chance you don't find a thread by someone with similar needs and budget(seriously, thousands of these threads), then just start your own and it will be answered promptly.