Churchkey, Brothers, Wandos are normally pretty good for women, but they attract a lot of "fratty" guys. Plaza, Lava Lounge, and Red Shed are known for cheaper drink specials. The Plaza and Churchkey are known for strong drinks.
If you want higher class and less Juniors head up to the square for Brocach, Natt Spill(great late night menu), or the Great Dane.
If you are a Beer lover check out the Angelic Brewery(also great for lunch).
Dancing:
Club Madison, or the Cardinal Bar (check out foam parties in the summer)
Music:
High Noon Saloon, Annex, or one of the many places on South Park
After Bar food:
Ian's Pizza(Mac & Cheese Pizza!!) , Parthenon(gyros), or Milios(subs)
Food While in town:
Amy's Cafe
Pel Meni
Charlie's
Takara ($11 for 3 sushi roll lunch special)
Jade Garden (Take out)
Responding to other suggestions:
Nitty gritty sucks unless it's your birthday. Free beer on your birthday, decent expensive food.
Inferno is nowhere near campus, and they allow smoking (a negative for me even though I do smoke occasionally), Dry Bean is almost outside of town.
My advice is to stay off of state st bars, they are normally more expensive and crappy. For hotels my advice is to stay at the Doubletree on Johnson Street, you are right in the middle of house party central (1 block south mifflin st, Dayton St, ect), and 3 blocks from most of the bars I have mentioned. Let me know if you have any other questions.
I am normally out on either friday or saturday night so if you are bummin around I can show you the sites for the price of a :beer: