I simply adore Jewish names (specifically the male names) and
Noam is one of my top choices for a boy.
I don't think
Talia and
Aviv would be a problem. I might see naming your kids using all very Jewish names might be odd, but
Talia's rather mainstream in non-Jewish culture so it balances the less common
Aviv.
Might I add, I would pretty much scream in delight if I met a sibset with
Talia and
Aviv. I think
Talia's rather pretty and
Aviv just purely handsomely distinguished. ;)