Those look great, I bought that decal set and a couple of UH-1 Bs and Cs but have never gotten to them.
There is a good book on the Seawolves I read a few years ago (I think it was just called Seawolves or something simple like that). Really interesting how they came about, and just in general a good read.
Frank I'll third Fireball, not only does he make nice decals he includes great reference material with them, slick glossy full color booklet to help you out. Most of his sheets include several options and enough decals to do more than one build. Nice stuff and a good bargain, to top it off Joe is really easy to deal with too.