Unfortunately, I really can't vouch for their burgers -- they might be awesome for all I know! -- but the happy hour at Acme Burgerhaus is epic.  Seven whole hours of beer, flowing freely at $1.95 a pint!  This deal lasts from 3:00pm to 10:00pm, Friday and Saturday, so check it out.  They have PBR, Anchor (the important brews) and four others.
The Acme Burgerhaus is located at 559 Divisadero Street at Hayes.