My wife is about to get a new laptop for work, and it's going to be a decision between the 13" and 15" MacBook. As far as I can tell, the 13" MacBook is a full pound lighter than the 15" MBP, a big deal if you're hauling it around. At that point, everything else is pretty much irrelevant, particularly if you pony up for the 24" Cinema Display.

No Firewire? The only reason you want it is for fast external hard drives. She'll have a drive for TimeMachine backups, but performance isn't as critical.

Slower hard drive (5400 vs. 7200rpm)? She mostly does PowerPoint and web surfing. HD performance probabably isn't relevant, particularly if you max out the RAM.

No ExpressCard/34 slot? A minor issue, because moving pictures from SD cards would require an external USB adapter rather than an internal ExpressCard adapter.

Am I missing something? Looks like the regular MacBook is a good deal.