Nice place, plenty ot see and do.
I work in Belfast, used to live in it, drink in it regularly too. Theres plenty of things to do here, Try and get on one of the bus tours, or the taxi tours, and you can see all the murals, and the different areas of Belfast. I would recommend going down to the docks, do the Titanic tour, in my opinion its only workth it, if you can do an actual tour of the shipyard, but sont let me put you off it. Plenty of cinmeas to head to, Odyssey, Dublin Rd, City side, loads of museums, bars etc etc.
Insider Tip:If you want to travel cheaply, you can get a day ticket on the metro buses (£3.90), buy it before 9.30 am, or after 7 pm monday to friday, cheap as chips, also, bus tours, the city sightseeing hop on hop off thing is good if you are clueless about Belfast, used the same thing in Dublin once, you will see plenty, and you'll have some compere to give you a run down of the place. Pints of good beer are going to be about £4.00, wetherspoons or an off licence is cheaper, dont get too wasted, too hard to get i