I agree with CaptainForce. Take your time and dont rush. Make sure the boat you get is the one you want and not the one you are stuck with. That being said I would and pretty much everyone here is going to recommend a survey of any boat you are considering purchasing.
I say go for it! Im not going to be too far behind you if everything goes to plan. My wife and I just completed our Asa 101,103 and 104 and hopefully being taking ASA's advanced navigation classes soon. Here is link to some interesting blue water boats to let you get an idea of what is out there.
Sailboat Reviews of Offshore Cruising Yachts : Bluewaterboats.org