Well for those of you still tuned in - I took the amp in to be serviced last night and I got a call saying it was fixed at about noon today!!!   

Looks like you were right mcinku. It took a tech probably 5 minutes to fix. He said he just needed to re-mount a relay. If the tech was there when I dropped it off, I would have just waited.

In all came to about $15, but I feel good knowing it's taken care of! Since the shop is about an hour away from me, I'm going to pick it up tomorrow night, but I just wanted to share the good news and thank you all again for your help and patience!

Hey, that's great news.

Probably nobody's interested at this point, but if you hook up your effects loop backwards your clean channel will disappear until you get the send and return right again.  The OD will still be there but a bit quieter and thinner than if it's hooked up correctly.