[saltman]

pc or mac?
what is your experience level with SD authoring software?

editing.
mac - final cut pro
pc - sony vegas

authoring
mac - they can't do it, last I checked. Encore CS3 may be the first whenever it ships. DVD Studio Pro does not support menu authoring of blu-rays.
pc - I've been using Sony Blu-print. there are numerous options from Avid to Roxio.