Domestic beers will run you 3.50 or so. Less if you buy a bucket of four (around 11.00). Imports, from 4.00 to about 7.50 or so.
Mixed drinks really depend on the type of liquor you want. Rail liquor and basic brands, again around 4 bucks or so, with some of the more exotic call brands up to twice that - a "lemon drop" might be 4 bucks, but a Grey Goose lemon drop might be 7.50, for instance.
So basically, about the same price structure you'd find in a middle-of-the-road kind of bar in a major city.