fireberd
I guess I'll just stick with running analog from devices such as the POD X3. Thanks for the responses.
I've attempted to use ASIO4ALL as an aggregator, but it ended up marginal at best.
Like you, I have several guitar toys that have USB interfaces but lack enough features for real use; specifically when it comes to monitoring.
So my THR10 and GT-001 get their analog OUTs stuffed into a proper interface for recording.
The only thing I really wish I could use the USB interface on is my Laney IRT Studio. The USB interface is central to the amp's dry recording and reamping abilities. As a work-around, I just record thru Guitar Rig, then pump the dry signal back out to the amp. It works fine this way, but would be more straight-forward via USB. I guess the only option is to go Mac, but we know what THAT means.
To me the lack of interface aggregation in Windows is as ridiculous as an application with tons of data files that doesn't have installation location flexibility.