I have had a lot of luck with the classic Stanton 681 EEE phono cartridge and the phono pre in my professional grade (late 1980's) Crown pre-amp. The Stanton 681 EEE is about $140 - $150 and easy to find. As someone else pointed out, the quality of your phono pre is very important. Some audiofiles always claim to hear "more" with various esoteric and very expensive MM phono cartridges and strange exotic phono pres, but something like a 681EEE and a good phono pre will get you a very usable set up.
J. Mike Perkins jmikeperkins.com myspace.com/jmikeperkins