HELP with speaker selection.

I have been seaching for a new set of speakers for about a month now. My present system consists of an Aragon Soundstage pre/proc, Bryston 4BST, Aragon 8008x3, Anthem CD1, Polk Audio LS90 speakers and a HTPC driving a NEC 9PG+ CRT PJ. I am interested in a set of used speakers ranging from $1,500-2,300. My room size is 23'x12' with my listening position about 4' from the back wall.

I have looked at thiel 3.6, B&W 801 S3, B&W 803 S3, ML Ascent and ML SL3. I like the sound of the ML but I would prefer to go a diffent route because my buddy has the Ascents and I simply want something different than what he has but it has to sound better.

My listening habits are Jazz, R&B, Reggae, etc. I also watch a lot of movies.

Does anyone have any suggestions ? If necessary, I may even be willing to upgrade the Brsyton if it will help with the speaker selection.

Thanks in advance for you advice.