Same here: Get a 17inch – much better for editing and specially for CC. A 17inch, NOT glossy!!!! display, HD.
Video memory should be good, and go for the new 4core, push up some RAM, but don’t buy it from Apple,but from OWC (on the net) – very cheap, amazing Apple stuff and very reliable.
If you can go for 7200rpm hard drive, SD Drive just if you really use it under extreme circumstances – editing in a safari cheap in africa. kidding. it’s a great disc, but you might wanna invest those extra bugs in something else.
Sascha