Ireland has to issue you a short term visa to go to Ireland with your EU spouse. Once you are in Ireland she must be exercising EU Treaty Rights within 3 months for you to be eligible for a residence card (this means she must become employed, become self-employed, or become a student in Ireland). If she can meet one of these 3 conditions it will be fairly easy and straight forward for you to obtain a residence card which allows you to work here.
If she can't meet these conditions, the options are quite limited (you guys would need to prove you are self-sufficient, but this is a tricky notion to define).
Here is the link for this type of residence permit:
http://www.inis.gov.ie/en/INIS/Pages/EU ... y%20Rights
You can also search this forum for "EU Treaty Rights" or "Stamp 4 EUFam" for more information.