I have an excellent condition Roku PB Rev B still under warranty that I'm ready to sell OR trade straight up for an excellent condition Roku SB Radio R1000.
It was purchased directly from Roku on 5/22/07 so warranty until about the same. I must say it doesn't seem to run hot at all (unlike my first PB.) I don't know if they changed anything but it's just mildy warm at most. I don't think it will be burning up anytime soon. Because of that, I'll offer a kind of extended warranty, $100 back if it dies after the ROKU warranty expires (return to them) but before 1/1/09. (You'd have to return unit to me in a standard ROKU warranty applicable condition (unit never opened or damaged, etc.)
First $175 or SB R1000 takes it. If no takers for that, will consider best offer.