It may also be worthwhile seeing if any of the qualifications which come under the Graduate Skills Conversion Programme may be relevant to you. These programmes are all 2,750 euros per year, which is considerably less than the 6,995 you mentioned above. I can't post links yet, but you would find the list of programmes on the HEA website. The programmes specifically in Maynooth for 2012/2013 are:
National University of Ireland, Maynooth
HDip in Applied Physics - Full time
PGDip in Applied Physics -Full time
HDip in Information Technology - Full time
MSc in Software Engineering - Full time
MSc in Applied Remote Sensing & Geographical Information Systems - Full time
HDip in Software Engineering - Full time
HDip in Music Technology - Full time
MA in Computer Music - Full time
Master of Engineering in Electronic Engineering - Full time
Master of Engineering in Electronic Engineering - Part time
Master of Software Engineering - Part time
Postgraduate Diploma in Electronic Engineering - Full time
Postgraduate Diploma in Electronic Engineering - Part time
Higher Diploma in Science (Computer Science) - Full-time
Postgraduate Diploma in Geocomputation – Full-time
Master of Science in Geocomputation – Full-time
MA in Digital Humanities - Full time
MA in Digital Humanities - Part time
Postgraduate Diploma in Applied Physics