What does power handling have to do with sound quality? Some of the best sounding standmounts such as the Focal Chorus line have sensitivity in the mid 90's and only require a few watts to really rock.

As you don't mind pre-owned, a quick scan of audiogon revealed quite a few treasures such as the Spendor SP3 (awesome midrange and clarity), MF OML1 (JM, a mod here, swears by these), or the Usher X719 (extremely musical, love to rock). I'm admittedly biased towards the Von Schwiekert VR1, but they aren't in production anymore and are getting hard to find, even on a'gon.

A lot depends on what you listen to and what kind of room you're putting them in. What's your front end?