I've never tried the Yamaha, but sounds like it may work for you and you can probably pick up a used one cheap.
That said, I'm not sure there is an "amp modeling only" multi out there. My guess is that it just makes a lot more financial sense to have a multi that can do modeling
and effects. Once the DSP is created, you might as well load it up with all the stuff you've got to try and market it as a do-it-all type device.
I've only fooled around with it a bit, but I always thought the Pof stuff had good amp modeling. Other than not needing the other effects, is there a reason you don't want a Pod?
Side note - bongo that is the nerdiest user title you've ever had. And I know it's super nerdy because it made me laugh.
