I've been studying Irish (in Munster dialect) for the last eight months or so - Here's what I've been up to so far:
First Pimsleur (a couple o' weeks),
Then Gaeltalk (eight weeks),
After that, I started working my way through "Teach Yourself Irish", the original Munster version by Dillon & Ó Cróinín, and joined the TYI Yahoo group.
There are lots of great books in Munster dialect but, alas, I don't know Irish well enough (yet!) to read them. Fortunately, I happen to like folktales and nursery rhymes (it's never too late to have a happy childhood!
) so I have been reading "Rabhlaí, Rabhlaí" and "Scéilín ó Bhéilín" which are perfect for learners at the beginning level.
When learning Irish Gaelic, I think that it's important to have someone to talk to in the same dialect that you are trying to learn, so hopefully you will be able to recruit a friend or family member join you..