A good lighting setup for a reasonable amount of money coupled with probably the best warranty service available is offered by Alien Bee.
AlienBees: Illuminating the Galaxy with Professional Photographic Lighting Equipment
You could start off with two AB400 lights (800's are only a little more and will give you more flexibility). A couple of small or medium softboxes (one for each light), two stands, and you're all set if your Canon has a PC Sync connector for triggering the lights. If not, you can buy a single CyberSync transmitter and receiver to trigger your lights. The second light would work as an optical slave (flashes when it detects the firing of your primary light).
Thanks so much! What do you recommend for a back drop?