Just wondering if anybody who has used a 30" cinema display connected to an MBP could say a bit about how that little graphics card performs for this giant monitor. Effects, video playback (HD and otherwise), UI responsiveness, Exposé, Dashboard, games... how does it stack up? Is it a worthy combination for any of the above, or does the notebook struggle a little? Also, any difference between performance when the 30" is used as the sole monitor and when both the notebook's 15" or 17" screen and the 30" are used? I have some experience with computers which *technically* work with larger or multiple monitors but just can't handle them gracefully. I'd love to have a laptop *and* a huge screen, but if it's too good to be true, I'd probably have to go with a mac pro (overkill, but what else works with the 30"?).