There is a wide selection of accommodation available in and around Cork City varying in price and type. Try www.booking.com <http://www.booking.com> for some good deals and a good map for locating Hotels, Guest Houses and B&B's. Prices range from €45 upwards for the night of 9th March 2013.
Note that Colaiste Stiofain Naofa is on the South side of the city and is quite close to the airport hotels. Travelodge and the Rochestown Park Hotel have some good deals going.