Graphics cards for modern PC games (I'm stuck hehe)?

first thing you need to figure out is if your motherboard supports a new graphics card. the first two you mention are agp, the 9500 and 9600 are usually pci express. if you have to get an agp card, your choices are going to be limited. agp is the old interface, and most of the cards you will find are poor performers for games. you can get a radeon 3850 agp card, but its probably outside your budget. if you have pci express, look for any video card that has a 256 bit memory interface (the same goes for an agp card if you can find one). stick to nvidia or ati and you won't go wrong. sorry its so wordy, but hope it helps