Alright, so here are the interface's ive been looking at. MOTU 828mkII Presonus Firestudio RME Fireface 800. MOTU 896HD Motu 8pre Basically, preamps are a plus, but they arent nessisary, because I have a mackie 1604 with 16 preamps. However, having some nicer preamps than the XDRs on the mackie would be nice (they arent colorful enough for me) I definitely want firewire, and something that works well with cubase. Mainly I just care about the AD/DA, and general sound quality / quality. Opinions?