I think you de-stress the 'having an idea' too much. Having a truly great idea -will- attract a co-founder. Well, if they hear it. It's not a magic spell.

Also, being the 'idea guy' might be over-rated, but being the 'vision guy' is definitely the bee's knees.

At a previous company, 1 man was the vision behind the entire product. I can't tell you how many hour-long meetings were ended in 5 minutes when he showed up and made it all clear. (This was after things got really busy and cloning him started to seem like a good solution.) You could bring any question about the direction of the product to him and he would have a good, clear answer.

Without him, I really doubt the company would have been a success.