Bear with me on this one... I know of a little Rua (roo-a) - it means 'red' in Irish and I think it's a lovely boy's name but it doesn't feel like 'the one' for us.
Now I know it's a bit hippy to use a noun as a name, but I do kind of love the idea as long as it's a good word and not, for example, 'spoon' or something. 
Also something which dyslexic DH can spell, and that won't get us too many any 
looks when/if we move back to Ireland.
Frontrunner names which sound good with our consonant-y two syllable surname are:
Jonah
Noah
Cuan
...any thoughts from any fluent Irish speakers?