A's, Balfour close to multi-year deal

According to Jon Morosi's twitter account the a's are close to locking up Grant Balfour to a multi-year deal. I like this move since our first rounder is protected, and we grabbed ourselves a pretty good reliever to put at the back end with Bailey and Breslow. I've actually been thinking for a couple weeks that Balfour would be a good target, and expected the A's to at least pursue him. Any guess's on the terms of the deal? Two years with an option would be my guess.