I usually use Misco myself - here is the list of graphics cards:
http://www.misco.co.uk/applications/....asp?CatId=431
If i had an AGP slot then I would probably buy this:
http://www.misco.co.uk/applications/...312&sku=510331
As a pretty good cheap card
if you have a PCI-e SLOT then this one seems pretty ok to me:
http://www.misco.co.uk/applications/...267065&CatId=0
But you need to find out what slots you have on board first =)
And of course there are people wiht much better kung-fu than me so I await their input also. And I reckon you should also mizz buttinz