Here goes:
Virge S3 (4mb or 8mb)Had this card in my matric year. It couldn't even run Warcraft 3 Frozen Throne at a reasonable frame rate. I was using my phone (GPRS) to play W3 online (DOTA and the sorts) and I can honestly say that my connection was better than the performance of this card.
Savage 3 (32mb)
Bought this card from my cousin so that I could play NFS Underground. I finished NFS using this card running at 5fps, I shite you not. It even played Warcraft like "my hond se gat".
Geforce 2 (32mb)
Eventually got this card and Max Payne 2 and NFS Underground 2 was smooth as butter until...
Geforce FX5200
All of a sudden there was graphic options available in Max Payne and NFS that there wasn't before (DAT BLUR THOUGH!!!). Pity that it seem to perform worse than my Geforce 2.
ATI Radeon 9200SE
Back in the day the consensus was that you go for Geforce for Image Quality and ATI for performance. Basically had the same performance as the FX5200.
ATI Radeon 9600 All-In-Wonder
Bought this card from my friend and was a nice boost in performance compared to the 9200SE.
ATI HIS IceQ 9800 Pro
Had a freaking button on the card to set it to PERFORMANCE MODE!!! Card smoked everything...until...sniff...Oblivion and Quake 4 happened

Card eventually blew due to all the loadshedding at the time.
ATI Radeon X1300
Card handled NFS Carbon well but didn't take to well to Oblivion at decent settings.
Nvidia 8500GT
Played NFS Pro Street like a dream on Windows XP. Ran at 20-ish fps when I upgraded to Windows Vista
ATI Radeon 3850
Beast of a card back in its day.
ATI Radeon 4850
This card was the shiznakkle

Sold it at OC Lan due to upgrading to...
Geforce GTX460 (1Gb Version)
Beast of a card which I eventually sold to a friend when I got my...
ATI Radeon 6950 (Bios Hacked to unlock shaders, so basically a 6970)
Still using this card. Think I'm way due for an upgrade but the socio economic environment doesn't allow for it

That's all the noteworthy ones. Don't let me start with my SO's list of GPU's
