Even templates have their own tutorials

Cassidy Bisher has several After Effects tutorial videos available on Vimeo (via Lester Banks) that support his AE templates at Dropdrop.com. One cluster is a series on "spy gadgets," which looks at tracking in AE and in Mocha for After Effects, all in support of his "Top Secret" templates (example below).

For some related tutorials and background, see Designing & Compositing a HUD and posts on tracking and Mocha. See also Resources for mocha for After Effects and Motion tracking overview and resources in AE Help.

Spy Gadget Tutorial 1 from Cassidy Bisher on Vimeo.