mine's oct. 30th, but i went to bu for undergrad. consider looking into the holiday inn in brookline. since they're not directly in boston proper, they might be cheaper enough to offset the tiny bit more you'd be spending on cab fare. i would even recommend going down st. paul st (the holiday inn is at the corner of beacon st. and st. paul) to the other side where it hits commonwealth ave and hopping on the BU shuttle that takes you from the undergrad campus to the med campus for free every 15 minutes - half hour. if this sounds interesting to you, send me a pm and i can probably help you out some more/make this clearer.
edit: also, i feel like a lot of people don't know about these other airfare web search sites that are often way better than priceline, orbitz, etc. go to kayak.com and cheapoair.com. and i have to admit "cheapoair" sounds sketchy, but i used it to buy my RT tickets to hawaii. they were the best for that deal.