What cartridge performs best with Thorens TD160?


I have an old Thorens TD160 currently outfitted with a Grado Prestige Blue. What cartridge under $400 would provide a significant sonic improvement to my set-up?
128x128ejineffect
05-06-08: Prcinka
Shure V15.....
If that's true, then it should also be true of the *currently in production* Audio-Technica AT150 MLX. It lists at around $400, but can be had much cheaper at LPgear.

I'd also maybe look at an Ortofon 2M Blue or Bronze.
Thanks so much for your responses. At first, I thought I would just go with the Grado Gold because I am familiar with the sound of the Blue. In your opinion does the AT150MLX outperform the Grado Gold?
I'd go for the Grado gold,not only is the price right it is a great sounding cartridge after you get a few hours on it.
the at150 mlx is one of the finest mm's....plays as refined as cartridges that are much more expensive