I'd second the Project Tube Box. I'm very happy with mine. I've still got the stock tubes in it too. Very smooth and natural sounding.
As for the MM vs. MC thing: I've had both in my system and my current MC is definately better, but my old MM was very inexpensive Shure M97. Even so, in some ways it had some qualities I really liked (timbres and warmth in particular). I've heard other MM's that sound great. Listen to a few, find one you like and it doesn't matter whether its MM or MC.
As for the MM vs. MC thing: I've had both in my system and my current MC is definately better, but my old MM was very inexpensive Shure M97. Even so, in some ways it had some qualities I really liked (timbres and warmth in particular). I've heard other MM's that sound great. Listen to a few, find one you like and it doesn't matter whether its MM or MC.