I passed the exam a few weeks ago with a great score and owe it mainly to the ITProTV videos - thanks!
For anyone else considering this exam, I would recommend buying the official book as well. The videos are much more engaging than the book and have a ton of information, but the exam had some really obscure questions that were only covered in the book. The physical book + ebook was ~$50-60 and I sold the unopened book on eBay for $20.
The other thing that tripped me up was finding the certification only rather than a training. When you go to to the Apple certification site, it defaults to the three day training course. Right under the banner is a Certification link - click that and that's where you want to go. It is completely obvious, but I spent more time than I care to admit trying to figuring that out!