YOu should probably buy an Digial SLR with a detachable lens. Then you could buy groovy wide angle lenses as well as portrait and telephoto if you needed it.
If your really into action photos, I'd suggest buying a Nikon, at whatever your budget allows you.
The Nikon has flash synchronization to 1/500th, which you may well need (Canon only synch's to 1/250th).
Get yourself a decent external flash.
Other than that, shoot like crazy and Im sure you'll get some great shots.