Passed the 70-686 exam a few months back. Thought I'd upload my study notes for you guys looking to obtain the
MCSA: Windows 7 certification and the
MCITP: Enterprise Desktop Administrator certification. (70-680 + 70-686)
http://www.filedropper.com/70-686studynotes
If you've already taken and passed the 70-680, then you know what you're getting into when preparing for the 70-686. I found the 70-686 to be the more difficult exam, so keep that in mind.
Here's what I used to study for this exam:
1) CBT Nuggets
2) Microsoft Self-Paced Training Kit (70-686)
3) Windows 7 Desktop Support and Administration (Darril Gibson)
Good luck!