Obviously the 1080p is better than the 720p. If you have to deliver 720p then I would shoot on 720p and keep it through the entire workflow. The DVCProHD files are nearly as good as real 1920×1080 pictures. The best results come with the intra codec. There is a extension card for the 2000, it’s worth buying.
cheers
Rainer
factstory
Rainer Wirth
phone_0049-177-2156086
Mac pro 8core
Adobe,FCP,Avid
several raid systems