I've bought in that general area myself. There is a huge re-development of the area happening at the moment. Google North Fringe, Capital North, Balgriffin, Clongriffin and you should find a fair bit of info. There will be a couple of new town centres - one in Beaupark and one in Belmayne as far as I remember. A doctors surgery, cafes, bars, restaurants, multiplex cinema and a hotel are all included in the plans and Father Collins Park is being redeveloped also so it should be a fairly good place in a few years.
There is a new dart station going in at beau park - due to open next year AFAIK. There are buses and nitelinks to the area. The main roads all seem to be getting widened as well so there is a fair bit happening.