If you're in a pinch, ecost.com for Denon refurbs...factory authorized...harmanaudio.com for Harman refurbs...
I lean towards the Harmans though, one because I like the sound better than Denons (YMMV, of course), and secondly because now the 230+ have a full set of preouts. I'm kicking myself because upgraditis has hit me, and my 225 doesn't have preouts...so no expandability there...it'll be a shame to have to let it go
