Help on what is the best out of this lis

AGP Ati Asus Ati Radeon 9600XT 128M
AGP Ati Asus Radeon 9200SE 128MB
AGP Ati Asus Radeon X800XT
AGP Ati Asus X800Pro
AGP Ati Ati All In Wonder 9800 Pro
AGP Ati Ati Radeon 9600 Pro
AGP Ati Ati Radeon 9700 Pro
AGP Ati Ati Radeon 9800 Pro 256MB
AGP Ati Ati Radeon 9800XT 256MB
AGP nVidia Asus Geforce4 Ti4400
AGP nVidia Asus V9520 FX5200
AGP nVidia Asus V9560 FX5600 256MB TV-OUT DVI
AGP nVidia Elsa Geforce FX5700 Ultra 128MB
AGP nVidia Gainward GF4 MX460 64MB
AGP nVidia Gainward Geforce FX5200 Ultra 128MB
AGP nVidia Gainward Geforce FX5600 Ultra 128MB
AGP nVidia Gainward Geforce4 Ti4200 128MB
AGP nVidia Leadtek Geforce4 Ti4600 A250U
AGP nVidia Leadtek Nvidia Quadro FX500 128MB
AGP nVidia Leadtek Quadro4 550 XGL
AGP nVidia Msi 6800GT
AGP nVidia Msi Geforce 6800Ultra TD256MB
AGP nVidia Msi Geforce FX5900 TD128MB*
AGP nVidia Nvidia GeForce 7800 GS AGP(Reference Board)

These are the cards that are officially supported by my barebones [Shuttle SN95G5 V3]. I am looking to see what is the most powerful card I can put in there. For reference, my AGP [ya I know AGP, ugg] slot is closest to the edge of the mobo, meaning the card is right up next to the side of the case. They make a mesh sided case that I am going to buy soon, so I shouldnt have to worry about cooling.

The rest of the system is a AMD 64 3000+, 2GB DDR400 RAM [dual channel], 500GB SATA 150 HD, DL DVD burner.

Also I currently have an ATI All-In-Wonder 9600 in there now. I am looking to max out this PC before I have to buy new. New processor will be an FX-60 [socket 939]

Thanks.