2016 - 100 years on from the Easter Rising, a great time to rekindle your mother tongue! :)
LOTS of great resources to get you started here:
Duo-Lingo: Fun and Free, step-by-step course available online or App: www.duolingo.com
Learn Irish with Liam O Maonlai: Free Irish Course from the Irish Independent Newspaper. Just download and listen!
Easy Irish : More free audio files. From 'Greetings' it gradually builds understanding through a series of 28 short lessons (Northern dialect)
Des Bishop - In the Name of the Fada : TV series following stand-up comedian Des Bishop's efforts to learn Irish fluently within one year. Funny and inspirational - "Níl sé deacair"
One of the best online Irish-English dictionaries can be accessed at: http://www.teanglann.ie/en/
Check out TG4 (Ireland's Gaelic TV Station) for lots of great documentaries and tv shows aired through Irish that are usually subtitled in English.
BBC: Giota Beag ('a wee bit') is a free audio course for Irish language beginners.
Then try Beag Eile - 'another wee bit'.
And, just for fun:
8 delightful Irish words and phrases that English could never match
How to curse in Irish: https://www.youtube.com/watch?v=jyfx0gUALxk