Places I recommend

Speedlites in action... 5D2, 7D, TT5's from Stephen Eastwood (extras) on Vimeo.

Canon speedlites, on both 7D and 5D markII Using the ST-E2, or built in 7D flash or TT5 Pocket Wizards(E-TTL compatible).

580ex2's, 580ex, 550ex's

Check my tutorial page for details and a "whats in my speedlite kit" list! As well as a how it was lit section under what can be done with speedlites

http://www.StephenEastwood.com/tutorials