Fly from the US to Ireland on Norwegian Airlines for $65 one way from New York. That doesn't include bag fees though. If you can travel lightly, it can be a great deal, just make sure to read the fare rules. The devil is in the details.
Website of the week - The Earth Awaits. If you want to live overseas, this will tell you where you can live according to your budget.
Tip of the week - If you're flying to Mexico, don't use ATM machines outside or even in a hotel. Skimmers are always attached to them. Go to a well known bank that has an indoor ATM that's monitored and secure.