Doug & Twl, You're right. It is me reading cost into the equation and maybe I shouldn't be. I assume it's the way I read the original post. I was basing my opinion on the equipment presently being used.
Although, I was NOT thinking about step ups' in the $700-$1500 range. I have had experience with both the EAR and GSP units with great results. Both also being fairly significant investments for this application.
I have always felt that once entering into that level of investment, full blown adjustable phono preamps had the advantage. In this particular scenario, it would allow Colitas to experiment with loading AND gain settings for MM OR MC cartridges eliminating the need for any step up. I was also figuring something like a Monolithic or equiv. on the used market in the $350-400 price point plugged into the aux inputs on his existing amp.
PERSONALLY? If it was me? I would be either buying a cartridge with a higher output OR contacting Rega to inquire about a 56db gain phono card, to avoid the introduction of cabling, power supplies, etc. NOT to even mention the $$$.
But, the original poster wanted options.