I'd also recommend checking out as many yaks as possible. Some like the sot some the sit in. I can tell you this from experience - the pungo, at least the classic I have is very very difficult to capsize because of the wide beam. SOT's are going to be better for launching in the surf but the higher center of gravity may be a disadvantage when the boat starts a rockin'
Both boats have advantages - if you go to a good shop they can help you find the boat that's best of you.