Jpg1975 - HT bypass means that the signal comes into the pre-amp and passes through to the amps without any change. In the case of an integrated (preamp plus amp), it seems you are using the amps in the integrated, not separate amps, so do not need a bypass. It sounds what you are asking about for is an integrated that has a fixed level input, not a pass through.
Bdgregory - my confusion is why you would use an 2 channel integrated to drive separate amps. If you have separate amps, all you need is a pre-amp. If he truly wants a hybrid amp but wants to bypass the amp section of an integrated when playing movies, that is a different scenario. But, that also means he now has 2 connections to the speakers, one from the integrated and one from the separate amps, which creates another set of problems, unless he has 2 sets of main speakers. Sorry, the idea of mixing the integrated and the separate amps is throwing me off.