TBWH just save up till u have a bigger budget that pc will only last you so much till you have to rupgrade or get a new one the pc in my sig is from 2004 and it beats the crap out of my friends 7950GT, but that involves about 1k in upgrades so think about it before you take the plunge.
Case - Cooler Master Centurion 5
Motherboard - Gigabyte 965P-DS3 (rev1.3)
CPU - Intel Core 2 Duo E4300
RAM - 2 x 1GB G. Skill DDR2-800 NQs
Graphics - Sapphire X1950XT 256MB
Power Supply - Rosewill RP550 550W
Hard drive - Western Digital 250GB 16mb cache
Optical drive - Sony NEC Optiarc DVD Burner
Optional Aftermarket CPU Cooler - Arctic Cooling Freezer 7 Pro
although i might do this build so i can learn some OCing and photoshop on since its pretty cool for the price costs less than my monitor and can probably pwn my current pc.