Thanks for the input guys... I've got a Macbook in the mail, and I'm pretty confident that it will cover my bases.
[a href=\"index.php?act=findpost&pid=154177\"][{POST_SNAPBACK}][/a]
Even being a little late, I really got much help from posts like this when making the same decision a while ago. I got a MacBook (2Ghz, 1Gb Ram, 80Gb disk) and it works great for tethered shooting. A 5D or a 1DsMkIII won't be an issue, even a digital MF Back, UNLESS you want to do some processing while shooting. On C1, a 22Mp digital back on a MacBook Pro ( the first model, 2Ghz, 2Gb RAM ) was really slowed down from converting from RAW into JPEG, I wonder how much a Macbook would be hindered. So, for shooting, it should work great, for processing, I'd either do it after the shooting is done, or rely on your desktop.
Mind you, my Macbook is my main workstation. But I don't work on 16Mp or 22Mp files, my camera is a simple Canon DSLR, so, for me, I never felt any problems on my workflow, even when it comes to processing on CS3 while shooting tethered (using canon's EOS Utility remote capture feature ). But it was really slow to process a batch of 22Mp PhaseOne H25 files a while back. from RAW into 16-bit TIFF, so, it's only a matter of how heavy the files you're handling are.