Get the 8500LE. Whether you should get the 64MB or 128MB version depends on how long you plan on keeping the card and what games you plan on playing. 64MB is fine for today's games and you really won't notice much difference with the 128MB version. However, future games will have huge textures and will really need the 128MB of RAM. For instance, Doom 3 will have 80MB of textures. So if you're going to keep this card for 6 mos. or more, get the 128MB version, besides, its only $15-$20 more.