areszues92 :
I'll go with the GTX 460 1GB and from the various benchmarks i have seen the 6850 only beats the 460 by a little, overall the 460 is still better.
6850 and 460 1G pretty much perform the same (6850 is 3% faster)
so choice is just personal preferences.
460 1G is said to have more OC headroom, while 6850 is new and unexploited yet.
6850 can support 3+ display eyefinity and draw less power.
both 460 768MB and 460 1G have had a significant price drop as of last week, and there is rumor saying the price will rebound.
If you are interested in 460 768MB, lowest price I saw is $150, which cannot be beaten, you should grab it now.
If you are interested in 460 1G or 6850, I see no point waiting. The price won't go down much, unless you can wait 3-6 months.