If you're planning on the fun of auditioning new speakers, I'd like to recommend Magnepans. If you've never heard planar speakers, then you owe it to yourself to give them a listen. Put aside all preconceived notions of how a speaker is supposed to look and work. A properly driven maggie is a thing to behold. Check out their website
http://www.magnepan.com/, they have options to fit most budgets, unless you're on a shoestring.

Craigo