Hi,
The advice to go with 2nd hand housing is a good one in my opinion, much better value. You could even look for a place where an extension could be added (certainly not at end of terrace) incase you had to stay put in the future.
CCOVICH is right about the train parking. (Did you make the move into Maynooth, been a while since I was on here?)
I'd never go through the village a peak times. If you need to get to the M4 from Moyglare, head out past Moyglare Hall, turn right at cross roads, on for 3/4mile, right at T-junction, on for 3/4 mile on left towards Leixlip and onto M4 that way.
I'm back in Maynooth at the moment and making the journey to Leopardstown. Traffic is wicked from 7 on with the result that I'm leaving no later than 6.30. I'm in at 7, but I'd rather be there early than in the car for 1.5 hours.