With a proper arm, you can't go wrong with a Shelter cartridge. I agree with Craig, and with David's assessment above. I use a 501 and like it very much. I use a modified OL Silver tonearm with it. They make a good match, OL/Shelter.
Of course, there are other good cartridges, but Shelter is very tough to beat for the money.
Of course, there are other good cartridges, but Shelter is very tough to beat for the money.