If you're CV checks out, and you're all that, and a bag of chips, then wait the 9 months to submit your application through ERAS in September 2012.
Focus on doing well on Step 2, CS and CK, both.
In 6 months you should start getting everything, i.e., your personal statement, your application information, your supporting documents for your exams and education, and your letters of recommendation all lined up. Then submit early.
If you interview well in-person, then you'll be snapped up in the Match in March 2013 by one of the Big 5, or Big 10, whichever list you subscribe to.
From there it will all work out well.
The alternative, of rushing in at the end to wheel and deal over the Match leftovers, might result in you landing an outside-of-Match position, in a program that couldn't fill through the Match. This could be a lucky perfect marriage because the empty slot was a fluke of the Match algorithm and over-selectivity, or it could result in a disaster for you because there were deep reasons why that program didn't fill.
It's true that sometimes programs have slots that open up because residents have big personal issues that come up, and they have to move or withdraw, etc., but in general, beware the empty slot.
Best of Luck