I'm about to upgrade my MacBook, since I just bought a new-to-me 7D...
Now: mid 2008, 2.1 gHz, 1 measly gig of RAM. PS CS is kinda slow...
Considering: low end MBP, l5 chip at 2.5 GHz, 4 of RAM and Hard disk drive. Loaded with LR 4 and PS CS6.
Enough horses under the hood? I'd rather have fast glass than the fastest computer...

