I have a very similar setup to TS by the sound of it, but my MBP is one iteration older than TS's.... (2.3 i7, not 2.5 i7), with 16GB RAM.
Under heavy loads (for most of last week I was running PS, AI & AE CS5, AE CS4 & AE CS5.5 simultaneously for 8hrs a day, rendering out various stereographic 3D clips @ 3840x1020... I could leave AE rendering whilst still working on and saving out multi-layered PS files quite happily... Fans often sounded like the desk was about to take off, but it coped with little lag in the UI or switching between apps.
I have a very similar setup to TS by the sound of it, but my MBP is one iteration older than TS's.... (2.3 i7, not 2.5 i7), with 16GB RAM.
Under heavy loads (for most of last week I was running PS, AI & AE CS5, AE CS4 & AE CS5.5 simultaneously for 8hrs a day, rendering out various stereographic 3D clips @ 3840x1020... I could leave AE rendering whilst still working on and saving out multi-layered PS files quite happily... Fans often sounded like the desk was about to take off, but it coped with little lag in the UI or switching between apps.
Oh for the good old days of 4hr render breaks!