Need help on cartridge recommendation, under 500.


I've been a long time fan & user of the excellent Audio-Technica AT-ML170 moving mag. cartridge, but...what else, am searching for perhaps more detail & smoother mids?

I'm currently using a Well Tempered "Classic" (latest version) with the outstanding B.A.K. P5 all tube phono stage.

Any & all recommendations for moving coil/magnet under $500. would be greatly appreciated.

Thanks!
denf
Direct from Japan for around $600 you can order Dynavector XX1 (not the DV1)...
Dynavector 20x has $525 list price in the US which means that you can find it for less than $500.
I would second the recommendation on the Grado Sonata at $500. Sweet midrange. Musical.
Another vote for the Sonata! Just be careful, as they have a tendancy to pick up motor hum on Linns (the very inner grooves only.) This hum is very minor.
Hey, thanks to all!

A friend of mine also says the clearAudio Aurum Beta (?) is one of the best for under $500.?

Anyone out there heard it?
You should be able to find a slightly used or demo Grado Master($800) for $500 or less.The Master is suppose to be very close to the Grado Reference ($1200)