MM Cartridge

Rauljazz, Did you mean to say you want several "opinions", rather than "options"?  You're sure to get more opinions than you can handle.  The other reason for not wanting an MC with your phono stage is you would need a SUT to step up the signal voltage of most MC cartridges, in order for an MC to work well into your existing stage.  So you'd either need a SUT or an entirely new phono stage.  IMO, the best MMs leave nothing on the table when compared to all but perhaps the most expensive MC cartridges.  So stick to your guns.

That takes the Virtuoso out of the mix. I'd look at the Nagaoka MP-500.

You realize that a stylus replacement may end up costing you as much or more than a retip?