Tutorials for Animating a Signature in AE can be found here.

DVD for Designers -An introduction to the basics of the medium
DVD Studio Pro 2: Highlights and Overlays
Delaying Button Highlights in DVD Studio Pro 3

Read Ken Stone's tutorial on Authoring with DVD Studio Pro 2 - Basic Mode.

Video Copilot has some of the best AE tutorials around.
Check out their FREE BASIC TRAINING VIDEOS.
Depending on your pain threshold- you might want to check out the tutorials you will find at Creative Cow. Bill O'Neil has a great portfolio site here. AE Portal and stevengotz, or here have an extensive list of links to AE tutorials. The Adobe Studio Exchange is a great place to find plug-ins, tutorials and more.
Here is that write-on tutorial we did in class. The Anvil gives away some great ae project files here. Also the Flock of Birds Tutorial, Part 1 and Part 2 and the Shatter Effect tutorials we did from Creative Cow. Here is some green screen footage from colbert challenge you can play with. Try Keying out this footage.

95 ADOBE AFTER EFFECTS tutorials here.

HandBrake is a GREAT mac program for CONVERTING your DVD files back into a Quicktime Movie. You can then import into After Effects or Quicktime Pro to re-edit it if neccessary. Get the Handbook/Tutorial here. YOU WILL WANT THIS FREEWARE PROGRAM.

MacTheRipper is a great program for, well, ripping DVD's to make copies- NOT to be used for duplicating commercially protected copies of course. Please rip, but do not rip off. This creates the neccessary VIDEO_TS and AUDIO_TS FOLDERS for creating new dvd's using software such as Toast. You can NOT go back and edit these files or do anything else with them except copy (rip) the original DVD files for copying exact duplicates.

Here are some Morphing software for the mac. Try MorphX for system 10.
Try this software you can find here for morphing.