I should be able to get a new computer close to the end of next year, but with Christmas coming up I'm considering buying a small upgrade for my current (old) computer to tide me over.
Currently, I have:
CPU - Intel Core 2 Duo E6600, 2400 MHz (9 x 267)
Motherboard - Intel Lemont DP965LT (3 PCI, 3 PCI-E x1, 1 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN)
GPU - Radeon X1300XT/X1600 Pro Series (512 MB)
4GB of RAM
I'm using 2 monitors (1400x900 DVI and 1024x768 VGA).
There's no real limit to how much I can spend, but I intend to make this a smallish upgrade, so anything in the range of $50-120 would be nice.
Ok, next step is to look at your PSU again and check the brand and power on the 12V rail. Hopefully your near 30A. This will allow you to run all but the biggest cards. If you have 22A-25A, you should be ok with midrange cards. <22A or questable brand and you'll have to get a lower midrange card.