If you are looking for a mid-range laptop & are not interested i ngaming SA will be right for you as soon as it's released. As far as gaming laptops are concerned it will be at least Q3 before a card that is comparible to the 7950GTX comes out.
As of right now the Desktop 8600 series cards beat out the 7600 series in synthetic benches but lose
a lot of ground in real-life performance. This link shows the comparisons of the desktop 8600 vs the 7600. Keeping that in mind, the laptop cards are going to be clocked lower & perform even worse.http://www.legionhardware.com/document.php?id=637&p=1
When DX 9.0L(the DX10 for XP) is released, Vista will probably recieve an DX10 update with optimizations. Who knows, with that update the 8600 series may get a perfomance boost & perform better than the 7600 series cards.
My opion is to get a DX9 laptop if you are into serious gaming. DX10 games are not going to run worth a crap on DX10 laptop cards until at least Q3, when they should be releasing a higher perfomance card for laptop gaming geeks like me. Besides there are not exactly a phethora of DX10 games available...