Hi! I'm 25 too and only got accepted to Dublin (I had a few interviews but they turned out to be no's) and I've decided I'm definitely moving to Ireland because I don't think I can wait any longer. I actually have a BSEE and will finish my masters from Tufts this May and feel like if I take any more time off there's no way I will go. I've already accepted the fact that I'm going to be up to my ears in loans by the time I'm done but I don't have a choice. The way I see it is, no matter what the total cost is, when you're done with school you just consolidate all the loans for a *reasonable* monthly payment and you'll be paying it off until your 60, just like everyone else. It's like having a mortgage and I consider it an investment in my future, so whats the difference in the extra tuition, $50/month?
As for the family thing ... my mother is a nurse practitioner who has all these medical residents who are just getting married/having kids in their late thirties/early forties. So she keeps telling me to not wait and just get pregnant while I'm in school/internship/residency etc. haha! You can make it work, it's just how bad you want it.
Good luck with your decision!

M.A.