TONS of experience with mixed clips in the timeline, but all that changes with FCP 6. Now just putting them in the same timeline works...no rendering.
I have a Kona LH that I capture my analog footage with. I have a DSR-11, but if I need to capture DVCPRO HD or digibeta, I rent decks. I have an HD monitor, the Sony PVM14L5 HD CRT, that also displays SD.
But HD CRTs are hard to come by. Get a Matrox MXO and an Apple 23" display and you can view your HDV footage at broadcast quality.
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