The hawk is one of the best GTX 460s you can buy.There are reports that the Palit GTX 460 heat up, due to lack of VRM heatsinks.And its not worth the premium for 2 GB of video memory, as there is little improvement as compared to the 1GB version.
Stick with MSI Hawk.
"1GB vs 2GB is tricky. Honestly speaking, the gains are minimal at best. In some rare titles such as Stalker: Call of pripyat a sizeable 16% FPS gain was seen. Other titles also displayed some measurable gains but they weren't enough to significantly improve game play experience. It depends on what you intend to do with these cards. Benchmarking wise, 2GB is still superior over 1GB but from a gameplay point of view the benefits are hardly noticeable. But then again, this should be expected from cards that are fairly "low end" to begin with."
the 460 2gb make sense if you'd get a pair and do multi-display. if you're not stay with the 1gb.
I agree, if you plan on sli two of them, even with a single monitor there are some games where you have enough power and could apply quality settings that having 2gb buffer would benefit. Its comparable to having a bigger frame buffer in the gtx 480, and two gtx 460 easily have more power than a single 480.