IMO, the snap call on the flop is the A
. We have a PSB left, so this is an easy shove, especially if we feel the villain won't fold the NFD. Gobbledygeek, if we were a lot deeper, then this is a good example of a 'small hand/small pot' situation. We've gone past the point of commitment - folding after putting in 1/3 our stack is a mistake. So, we get the money in and live with the consequences.
HOWEVER, as a person who has felt the cruel hand of variance slap him upside the head so often recently that tournaments are starting to look more appealing, overall bankroll issues must be addressed. If you are on a fun time, looking to gamboool it up, and the money doesn't matter it's an easy shove. But if you are a BR nit, are on a short roll, or are variance-phobic, I can see a check behind. This is especially true if you feel the villain won't jam the turn if you check. If a non-diamond falls on the river, you can bet or c/c as you see fit. The tighter the player, the more I like a river bet versus a check. The looser the player, a c/c is a better line. Sure, you may get a check behind on the river and lose EV, but for the BR nit, the alternative could prove much more costly. If the river is a diamond, we can confidently c/f.
At the end of the day, +EV decisions make the money. So, unless you are destitute and/or cannot stand a 200bb swing, move ARRRRRRRRRR EEEEEEEEN on the turn.