Wow, thanks everybody!
No professional here, I used a Pentax DSLR (K10D) with a telephoto zoom lens for the close ups and a better zoom lens for the rest. I do think that I will make a photo book of these to remember our first trip to Fenway! The second game that all of the close ups came from we had great seats (Lodge Box 159 row BB against the rail, 13 rows from the field).
I thought they turned out pretty good for an amateur!