I will be in the neighborhood for a couple days.... which are the must see pool rooms?
boston billiards in nashua about 15 minutes from lowell (exit 4 off route 3 in nh)or maxamillians in tewsbury (exit 35 off route 3 in mass) which is a little closer. both are good places to play with food and alchohol.
guy
From Lowell, you can reach a few other places:
North
Maxamillian's in Tyngsboro, MA (near New Hampshire border)
Slightly closer to Lowell than Boston Billiards in Nashua. Wednesday nights are league nights, but there's a chance you could play as a sub.
http://www.maxamillians.com/
South
World Class in Peabody, MA
I'll second that nomination, especially if you want to play carom. You shouldn't have a problem scaring up a game of 9-ball there.
http://www.yelp.com/biz/world-class-billiard-peabody
Southwest
The Billiards Cafe in Ayer, MA
Has the only 12' snooker table in New England accessible to the public. Nicely decorated, fairly quiet room. I think there may be a league on Wednesday nights.
http://www.findsnooker.com/Massachusetts.htmlhttp://www.findsnooker.com/Massachusetts.html
Breakaway Billiards in clinton now has a snooker table... its very nice
http://lh5.ggpht.com/_5PSeLXC6A3I/TO1gHjldgPI/AAAAAAAAAX4/Vltrlu-3d-E/s144/breakaway snooker1.JPG
http://picasaweb.google.com/lh/photo/7FRtuJEOWmTp6I3WusCG7Q?feat=directlink