[Al Bergstein] "I've been defaulting to 8 bit, but should we be pushing to 32 (I assume so, as I'm running a 64 bit machine!). "
The default is 8 bit for a reason... That's what most projects require. The 32-bit refers to the internal math that Vegas uses for color calculations. One reason to use 32-bit is if you have gradients that are showing banding. Sometimes using 32-bit will smooth them out. Otherwise, it's not needed. This has nothing to do with being on a 64-bit machine.
~jr
http://www.johnrofrano.com
http://www.vasst.com 
