I have seen so much discussion of the Dynavector 20X-H that I am about to give it a try. It has a 2.5 mv output so it will work with your mm setting. The low output version has a .25 mv output. I can use either and am trying to decide which way to go. I am using a Denon DL-304, but its .18 mv output would probably be to low for you.
I just remembered seeing a post that said that the Dyna was a little bass heavy so it might not be the best match for you after all. Though that is just one persons opnion.
Here are a few sites that will help you decide which cartridge is a good match with your arm & pre. As far as sound if you cannot go hear one all you can do is run a lot of searches on sites like this and google for the cart you are interested in and get a feel for it by what people are saying.
http://www.cartridgedb.com/
http://www.soundfountain.com/amb/ttcartridge.html
http://www.kabusa.com/frameset.htm?/index.htm