I know this is pretty basic, but I use an HD system so know ABSOLUTELY NOTHING about LE systems. I'm considering putting an LE system in another room, and could use some quick answers regarding my I-O options. Is it the same as Mix and HD, in that I MUST use digi interfaces, or can I use any pci or USB card? I need to know for basic audio, midi and lightpipe. ALSO: Assuming there's enough cpu power, do all TDM plugins run, or is it RTAS only? thanks.