Okay, I've never seen anything Irish at Beverly Hills Cheese Store... But now both Trader Joe's and Whole Foods have Cashel Blue. (Intense! Not for neophytes.) Both TJ's and Costco have a selection of Kerry Gold products, including butter (yum! Can you tell I like Irish dairy products?).
But where can I find Ardrahan? And other Irish farmhouse/artisanal cheeses?