There's a number of threads on this already.
CBD. Cookie, Mrs Parmas, Beer DeLuxe, Dejavu, Young & Jacksons (Y&J was disappointing when I last visited).
Plenty of places in the suburbs nearby as well.
Terminus in North Fitzroy. Little Creatures in Fitzroy. Mountain Goat in Richmond. The Local in St. Kilda. Gertrude in Fitzroy. Great Northern in Carlton. Raccoon Bar in Preston. HEAPS more.
I'm off to the Terminus tonight! Work dinner. Woo-hoo!