Cruising for sticky material I see I say it deserves to be a sticky, good work.
How far back are you planning on going? There are GeForce 2's, 3's, 3 TI's, 4MX's, 4800's (I think), Radeon 7000, 7200, 7500, 8000, 8500, 9000, 9000Pro, 9100, 9200, and 9200Pro. And that leaves plenty of cards floating around within my little list too, Like the Geforce 2MX. But who in the right mind would "upgrade" to any of these.