In my efforts to keep everyone updated in the driver field for the 8600GT for the Macbook Pro, etc. I tried these newer drivers out today and they perform very well. I recorded a 3-5 FPS increase over Bootcamp 2.1 drivers running Crysis on MED-HIGH settings. Enjoy. Also, these are pretty much BRAND NEW, they are from 8/12/08. One more thing for installation. Make sure you download the modified INF file and copy it into the folder where the driver contents are extracted after you download otherwise the drivers won't install.
XP 32-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20121)
XP 64-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20124)
Vista 32-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20122)
Vista 64-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20123)
XP 32-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20121)
XP 64-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20124)
Vista 32-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20122)
Vista 64-bit (http://www.laptopvideo2go.com/forum/index.php?showtopic=20123)