Again, in the spirit of updating the thread, a general resource for Boston hotel is:
http://boston.hotelguide.net/

An excellent hotel (where we put up visitors) is The Eliot http://boston.hotelguide.net/data/h100029.htm

A bit more affordable is a super-B&B: http://gryphonhouseboston.com/index.html

Finally, a little further out (but on the Green Line B-train so trivial to get downtown) is a good Best Western: http://boston.hotelguide.net/data/h100010.htm

This hotel is about 5 minutes drive from BC.

Hope all this helps.