After Effects Exploding Logo Technique

I'm new to the forums, and a colleague said I could find the answers to my question here. I'm working with a client who wants the following to take place. Anyone have any ideas on plug ins, tutorials, etc that could help me accomplish this? I'm using After Effects CS5.

From the client:

What I need is:
1. The circle logo "explodes" into a bunch of tiny parts.
2. The parts then expand out to the edges of the frame.
3. The parts then go into a suspended animation sort of thing.
4. After suspending for about a second, they come back together as the square logo.
5. After the square logo displays for a few seconds, the same thing happened with the transition from the square logo to the final text.

The client wants "great" so any help you can offer would be awesome!

This tutorial may help:
http://www.videocopilot.net/tutorials/particle_explosion/
It is using a stock AE particle system. You can create 2 animations of the logos exploding and reverse the second one. The trick will be transitioning from one to the other. One suggestion is to work at a high frame rate and render that out and then import in a standard frame rate comp and you will get the explosion in slow motion. You can then time remap that in order to slow down the explosion to the end. You can even have the camera change perspective while you transition between the two explosions.

Tudor "Ted" Jelescu
Senior VFX Artist