Update: Parts arrived and I am posting from the new system now. It's at least mostly working, but I may have to wait until later this week to get it completely done and stress tested. More details and pictures to come.
$600 budget. I have HD and 1gb DDR400 RAM. My current computer is fast enough, it's just too big, heavy, and noisy for a gaming rig. I'm going to clock it down and turn it into a file server.
This is the build I am currently considering (newegg links are for reference, if you found a better price somewhere else please let me know):
CPU:
$162.00 Athalon x2 3800+ s939 (lets me keep using my DDR RAM awhile longer, saves me lots of $$$. Without overclocking it should be comperable to my P4 Northwood@2.88Ghz, should run smoother with 2 cores, plan to OC a little)
http://www.newegg.com/Product/Product.asp?item=N82E16819103562
Motherboard:
$86.99 nForce4 mATX mobo (this board appears to have everything, should work better then the IGP chipsets that most mATX mobos come with)
http://www.newegg.com/Product/Product.asp?item=N82E16813188007
GFX:
$92.99 x1600PRO GFX (should be powerful enough to make me happy as it is replacing my FX5700ultra; cheap and easily replacable later. rear-exhaust HSF a big plus. thx to jaguarskx for the suggestion)
http://www.newegg.com/Product/Product.asp?Item=N82E16814161161
Case:
$69.99 xQpack micro-ATX case (my favorite case ever, will replace PSU)
http://www.newegg.com/Product/Product.asp?item=N82E16811125485
PSU:
$99.99 SeaSonic S12-430 (PSU must draw air from the bottom, not the end. The end will be blocked by the optical drive. thanks again to jaguarskx for info and personal use recomendation)
http://www.newegg.com/Product/Product.asp?Item=N82E16817151023
Optical Drive:
$29.99 16x DVD Burner (I'm not picky here, I almost never use optical drive, but annoying when it's not there and you want it xD)
http://www.newegg.com/Product/Product.asp?item=N82E16827106014
GFX cards have gotten crazy with heat and power requirement, CPUs haven't gotten much faster, I'm not feeling motivated to spend a ton of money on a new computer but I think I found a cute but capable solution. What do you think?
I Plan to mod the case to make the CPU HSF exhaust directly out of the case as well. I don't have AC and I've grown tired of my Vantec Tornado 92mm xD