Yeah for the shape of the plug you will probably be just fine here. Hard to find 3 prong power outlets, so you'd need to buy something for that or just knock off the 3rd prong. 2 prong plugs where one prong is slightly wider than the other, you will need to buy something for that. Just stop by an Ace Hardware or a 99cent shop, these plugs should cost 99cents.
For power converters, buy them once you get to Thailand if you still need one. Just stop by a mall, or a big computer market.
cheers