John, I was in your exact same shoes 3 months ago. I have a Technics SL-1200MK2, and I was using a Shure M97xE for a few months. When it was time to upgrade the cartridge I went with a Dynavector 10x5 that I found used here on Audiogon, and I can say first hand that the sound you will get with this cartridge on this turntable is amazing. I can say that the other cartridge I was considering was the Denon DL-103R which I hear compares very favorably.
Obviously you would want to listen to the cartridges in your system, but I know that's not always an option. Since it's not, I thought I'd offer my experience with a cartridge upgrade from the Shure M97xE on this particular table. It's a great turntable, and it really will bring out the best in most cartridges within the right compliance.
-Dusty