Hi Russ;
I have 2 internal drives. I normally render from main drive to my second drive. Types of files I render are DV NTSC to DV PAL or revers, NTSC to quicktime for web, Final cut sequence to (simple and complex) to DV NTSC.
Sometimes I find it much faster if I output my Final seq. to DV NTSC for example and then use the completed quicktime file for various out put format using compressor.
I hope I answered your questions.
Thanks