I don't mind using integrated card for general stuff, but when I use the new Photoshop filters, I want to be certain that I am utilizing Mercury playback. I imagine there is a way that you can tell.
I am just a pro user - not a geek, but read a lot and am not afraid to follow directions and upgrade my machines myself, which, of course means ordering more ram at the same time. Am wondering if upgrading eSata will void Applecare....
Thank you guys sooooo much for your feedback - you have both helped me decide to order when I get home from work tonite.