I haven't heard anything about the 9200 - I thought the problems were confined to the 8400m gs and 8600m gt. The people on the Dell site were asking about replacing their 8400's with a 9xxx series gpu, and I tried searching for 9200 gs problems, but didn't get any hits. The Samsung got a good review here:
http://forum.notebookreview.com/showthread.php?t=293783