oh come on BOTH! kidding... i can def. offer a few suggestions, did you want to stay in the Nova area or go to the city.
there arent many bars here in the Nova area, Kelly's is the current hot spot, it is right down lancaster ave in Bryn Mawr... The Wild Onion was where we all hung out at the beginning of last year and is also really close to school, i think it was a lot of fun... and Brownies 23 East is in Ardmore if you like live music, friday they also have a good happy hour.
in the city the possibilities are endless, i suggest Plough and the Stars and Mad River if you like fun bars and good drinks. (both in old city)
ahhh the wisdom of a 2L ... HA HA (this is what I learned last year)
ps my girls and i will try to make it!!