I would definitely vote for going with using the commercial yeast. The "wild" yeast is pretty rare in the air unless you've already added some by making bread with commercial yeast! You're just as likely to also get something that would kill the yeast as you would to get good "wild" yeast. Many of the recipes including the "wild" yeast kind of forget to mention that or that some of the recipes come from bakeries where (surprise!) there's lots of yeast already in the air.
I wish I had time right now to try some of those recipes out! They look delicious!!
I wish I had time right now to try some of those recipes out! They look delicious!!