If your just looking to take 35mm or digital stills, you can save yourself some serious cash with a trip to Home Depot...
They have Halogen work lamps in different wattages. They are caged and have clamping swivel mounts all for about $10. I suggest get one stronger than the other two to use as your 'Key' (main) light.
What you will need with these is a material called 'tuff spun'. It comes in sheets and it's used in the film industry to 'scrim' lights. That means you can diffuse and control light the way you want.
The tuff spun is held over the light cages with clothes pins and really softens and controls the lights so you don't have hot spots. It's made of fibreglass so it doesn't burn (don't try this with something else, lights get really hot) and it's relatively cheap....
You can get it from photography supply houses or from the source...Rosco. Rosco also makes colored gels as well.
A google search will get you a lot of sources.