Hey guys, I found decent gaming parts which come to a total of $400 with tax and shipping. I'm going to build it myself, maybe get some help from friends, it will be the first one I'm ever going to build. Here it is.
AMD Phenom II x2 (unlocked to x4) 555 BE 3.2 gHz
4 GB G.Skill Ripjaws RAM
500 GB 6Gb/s 7200 RPM Western Digital Hard Drive
XFX ATI Radeon HD 5670 1 GB GDDR5
Biostar A880G+ Motherboard
Cooler Master 500w PSU
Sony 24x SATA Optical Drive
HEC Blitz Black Steel Edition ATX Mid Tower Case
1x Rosewill White LED Fan
The processor is basically a 955 (quad core 3.2gHz) but with two cores disable, but you can easily unlock the disable cores, geting you a $120 processor for $90.