I'm curious how much better in performance a Nvidia 260m GTX is over a 230M? I'm looking at laptops and am torn between the HP dv6t Quad Edition and the Asus G51J-A1. They have similar specs with the exception of the video (the Asus is better). The cost for the Asus is much more than the HP. I'm not a gamer but I do want a good GPU. Advice and thoughts? Also, for comparison my desktop currently has an Nvidia 8800GT.