It doesn't look like there's a record book for the 2007 game, but I don't think I've seen a season like this from a team or a player in the couple of handfuls of leagues I've been in... (Though I was in a league where David Ross hit 67).
http://fantasygames.sportingnews.com/baseball/stratomatic/2007/team/team_other.html?user_id=13769
80 homers out of Ortiz... 71 from Beltran... 50 from Hall... 41 from A-Rod. Lee is also at 40 total, he came over in a trade at about game 100.
371 total for the team with 6 games to go.
And a special shout-out to Aaron Cook.