Upandrunning
There are lots of places to stay in and around the airport.If you bring your car with you, you have the option to stay a little further out in places like Rush or Skerries. The houses are slightly cheaper out there.I am Dublin based myself and know of a couple of people who have just started training and are looking for "flatmates".If you need more info let me know and I will help you where I can.
Cheers, Barnum