OK, by saying you will only buy what you hear first, that limits your options greatly.
What speakers have you heard, or can arrange to hear. We'll offer our "opinion" on what we like best.
While listening first is a great idea in theory, you limit yourself from some great internet only speakers, particularly subwoofers, and some very fine speakers that might not have a dealer local to you. That's a pity since
Saturday Audio currently has some great deals on PSB speakers and
Audio Advisor always has good deals on fine speakers available.
...just sayin'
[edit] I see you're getting good advice at Audioreview too.