Ok, follow these instructions:
Unfortunately, there's no way to tell what slots you have unless you know what you have from when you bought it or you open up your computer. Dimension 8200's are easy to open, just push in the dark grey buttons on the top and the bottom at the back end of the case and open it up like a book. Unplug it first though.
On the motherboard, you should see a few white slots, those are your PCI slots. You should have either 2, 4, or 6 of those. Right above those you may see another slot, but a smaller one in the color green (you should have the same color as mine since its the same computer). If you have that, then its your AGP slot. Note that your current graphics card is probably already in your AGP (green) slot if you have one, if not then its using a PCI (white) slot.Here's a picture of a motherboard with an AGP slot and with 6 PCI slots: See picture
The white ones are the PCI slots and the red one is the AGP slot; yours should be green though.
So, if you found an AGP slot in your computer, then you can get an AGP graphics card, like the one you picked out or the one I did.
If not, then you have to stick with PCI (be careful not to get PCI-Express), which is limited.Your only other alternative is to get a new motherboard with an AGP slot or a PCI-Express slot. And if that's the case, seek advice from someone who would know what type of motherboard to get, as Dell has some compatability issues with replacing their motherboards.
[This message has been edited by Tevious (edited 01-09-2005 @ 11:34 AM).]