I like good beer. My favorite style is IPA (India Pale Ale), which is a strong, typically somewhat bitter, and very hoppy (skunky) in flavor. Most brewerys make it resemble the classic taste well enough, but some are definitely better than others. A good one that is somewhat cheap is Boulder Beer Company's Mojo. Stone's IPA is also good, as are DogFishHead's 60, 90 and 120 minute IPAs, but DFH can be expensive. Actually I haven't asted the 120 minute, it's like $10 for one bottle.
My favorite single beer is pprobably Arrogant Bastard, by Stone.
Others I like is Bear Republic Hop Rod, Lenny's RIPA from Scmaltz. Porter's and Stouts are ok, but I prefer bitter and hoppy.
You can get some good beer at Trader Joe's. We have a place here called Sunflower Market. Sorta like a natural foods grocery store. They have a good selection. Otherwise, good liquor stores can have good selections. We have one here that has a TON of variety, and they individually price bottles, and let you cutom make your own six-packs. They are a bit more expensive, though.