I don't care for the Ott lights, I think they are way overpriced. If you're looking for something like true bright daylight, you can get that by purchasing CFL bulbs with the correct "color temperature" rating. Most bulbs have these ratings right on the package. You want the 5000K bulb. This is what I use over my working surfaces and also to photograph my quilts. You don't need to purchase special lamps for these bulbs. The ones I have are large, but fit into a standard lamp, although I currently have them in reflective clamp-on fixtures.
If you're less worried about color temperature and just want something bright, I really like the IKEA Jansko LED lamp. They come in 3 models - floor, tabletop, and clamp-on. I like it because it focuses the light on my work area but doesn't disturb those around me who may be watching tv or something.