I've got FCP7, and Premiere 5.5 on my laptop, but I keep going back to X. I imagine I'd jump back to FCP7 if I had a multicamera project, but I've actually edited a number of simple 2 camera interviews quite easily using the synchronize function. It worked quite well.
I haven't missed the second monitor.
If I have more than one clip stacked in the timeline, I can easily find the right frame by scrubbing with the T tool, or the B tool. This lets me quite easily see what's going on in each camera with the skimmer. Try it. It works quite well.
I still have a large list of things I want to see, but I've been seduced by it's power, and early next year we'll have multicam and external monitor support. I can still edit on FCP7 anytime I need, but haven't needed to for several months.
Life is good.
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FCX. She tempts me, abuses me, beats me up, makes me feel worthless, then in the end she comes around, helps me get my work done, gives me hope and I can't stop thinking about her.
Mark Morache
Avid/Xpri/FCP7/FCX
Evening Magazine,Seattle, WA
http://fcpx.wordpress.com