I recently purchased a pair of Monitor 60 refurbs from the Polk Direct Store on Ebay. They sound great and you couldn't tell that they are refurbs, not a scratch. Got the pair of Cherry for $175.
I'm thinking of using the 60's as my side speakers in a 5.1 and putting Monitor 70's up front with my 55" Sony HD. The room is about 15 X 25 and open ended on one end. I've got plenty of power with my Yammy AV Receiver. Is this overkill? Should I maybe just add some Monitor 40s for the sides?