If you are seriously looking for a cofounder, it would help if you posted your idea. You don't just want someone with experience, you want someone who has as much of a passion for your idea as you do.
It is also important to realize that an idea is worth next to nothing (and that many people have probably thought of the idea before you). What matters is the implementation and your ability to deliver what users want.
Posting my Idea is no problem. I can provide the abstract of my idea. But I would like to hear from other hackers about their approach. I second your point on Idea execution.
I am true believer of “Ideas are just a multiplier of execution”. - Derek Sivers
It is also important to realize that an idea is worth next to nothing (and that many people have probably thought of the idea before you). What matters is the implementation and your ability to deliver what users want.