It has been some time ago that I've been working on my MacBook Pro, my backup computer. Since my iMac is in repair, I have to use the MacBook Pro, with a Thunderbolt screen attached. The good news is that the MacBook Pro is strong enough to work with the current CafeTran, including lots of resources. (I have 16 GB RAM.)
The monitor is low resolution so I'm not aware if the MacBook Pro is powerful enough to control an external hi-res screen (like the one from LG).