I'm with Shane about FCPX.
[Corbin Gross] "Maybe some folks with too much time on their hands can tell me why they like FCP? I know a lot of people use both the Apple and Adobe suites, I'm sure there are benefits to each. I do find that I spend about half the time I'm working on video waiting for renders and previews and such. And not like exporting a project, I mean just previews. Do the Apple products seem to work any faster? "
FC.7 offers a lot of RT preview when working with certain codecs and settings.
Things like Prores, DVCPro, DV, works well when editing on standard sizes (NTSC, PAL, HDTV..).
Normally you can move few layers with some animations and effects in RT without rendering.
The RT performance will depends on your system and on what you are trying to do on your time-line.
I thought PP CS5 was good for RT preview.
rafael
http://www.nagavideo.com