What kind of video card will fit my pc?

[SGT.MARCO]

I haven't a video card so you can imagine how unbearable it is to play pr. i went to a store to request a video card but they said it : "wouldn't fit" i dont know what cards do it i want to run pr on good quality.

Any way to tell what kind of video cards my pc can support. it would help dearly,
also what suggestions do you have under $100

my specs AMD Athlon(tm) 64 X2 Dual Core processor 4000+ 2.10 ghz
2.000 gb (ram)
vista operation 32 bit

more info here What kind of graphics card can i get cheap? - Yahoo! Answers

so plz, is my motherboard AGP or PCIE

[SnipingCoward]

There is no safe way of telling you which card will fit unless you provide us with the brand and model of your motherboard.

I believe there are tools which can identify hardware (Everest?).

Once you know which mobo, you could actually find out yourself by looking into the manual - usually the manufacturer supplies a downloadable PDF on their website.