I use a Line 6 TonePort UX8 with BIAB/RB/Sony and it rocks. From what I can tell from the drivers when they install on my Windows 7 system all Line 6 devices are supported.

The cool thing with the Line 6 devices is you can play with amp models and effects, but record a dry signal. Then in your DAW you can tweak your settings. This lets you try out different amps and effects from one recording session.

I had it running on 64 bit Windows 7 and it worked well, but I went back to 32 bit to handle some of the virtual instruments that didn't run well with 64 bit.

Rick

More toys than time (and talent) will ever allow me to fully use