This little card is impressive massive O/C cabability and SLIing these 2 cards is a good option. Less heat power draw etc.
No-----tri-sli capable here, that might be the only reason the GTX465 will stay a current product otherwise no other compelling reason for a GTX465.
The 1gb version is the best bet, Sparkle has a 2GB version soon FYI.
http://www.sparkle.com.tw/News/SP460/news_SP460_en.html