I started using vegas, then I switch to premiere because of all the crashes when working with HD. However, premiere can be awfully slow without some dedicated drives for editing. I wound up switching back to vegas, but this time I went to the pro edition. Works much better. Although, I commonly get a low on memory error when rendering. The best part is this happens when Vegas uses 1 gig of memory and I have 4 gigs total (2 free when it fails). This makes no sense as premiere had no problem using up to 2 gigs.