Hi,
I have been using maya a while and use a 3 button mouse (Yep the middle one is a scroll wheel - but I like that because it can zoom in/out) I also have a Wacom but only ever used it once or twice in Maya and then it was only to see what it would work like in the "sculpt" and "paint" sections.

3 button mouse is fine for me.

Regards Scraggy