one source of accomadation (but don't know how good it is):
http://meath.goireland.com/scripts/low/xq/asp/areatype.c/areaid.188/qx/area.htm
You want to be between Skreen and Drogheda. Public transport is ropey. Places like Newgrange have good bus links, but Tara, Fourknocks, Dowth etc are tricky to get to by bus.