+1 for the Gigabyte G1.
If you want to do a bit of overclocking i read Samsung's Vram does better than Hynix's IC memory in this regard. In the above link all the cards mentioned there are using Samsung's IC memory. If you do get the Gigabyte G1, make sure it's revision 1.0 if you want Samsung memory, i believe revision 1.1 has Hynix memory.