Jsman,
As to your quest, it is hard to go wrong with some of the MM cartridges already suggested and there are many more to try. The great part is that all of them are reasonably priced. So go for it and enjoy! This is not easily done with MC cartridges. Dont get me wrong. I enjoy having both types. However, unlike MMs, trying some of the best MCs can get very expensive. So let us know
it would be interesting to hear your evaluations of the MMs that impress you most.
I also agree with the suggestions to also look into a high quality phonostage. However, the sonic performance of such units within your system should be the among the major reasons for your purchase. Three of the top five phonostages I have used are one-off, prototype or beta units from highly regarded and talented enthusiasts. In fact I still own two of these quality units and use them regularly. None of these designers have ads in major print or online publications and none have a network of dealers. All of them were OK to have me try their units on a trial basis. If specs are a huge concern, then you can always have the units tested to verify the claims. They all provide excellent and timely, customer service and tech support. They have to. They much more to lose than a sale if they did otherwise. Sure they make products that are hand made, but they also happen to be often-consulted experts by the more highly visible companies. So do not overlook highly regarded products from such manufacturers. Forums such as these are a great place to learn about them. It is possible that persons suggesting otherwise have a vested interest (or at least I question their motive(s)) for doing so.