these cards look good but if you got x1900 cards already i'd advise to wait for the next generation of cards as the performance increase on the x1900xt's seems to be 5-8%

 

 

http://www.xtremesystems.org/forums/showthread.php?p=1694273#post1694273

yes it looks good, just posted another message interestingly the x1950xtx card works with a standard x1900 mastercard in crossfire, might be a bit of an administrative prob for hwbot though to categorise the score with mixed cards