I use a fixture similar to
this at my desk, and for larger stuff, the office has a couple booths similar to
this.
What you're looking for is 5000K bulbs; I don't think the fluorescent bulbs in the fixture here are standard, but you might be able to get them (or something that will perform similarly) at a normal lighting store. In my admittedly somewhat limited purchasing experience on light booths and boxes, you often get what you pay for in both the fixture and the bulbs. A good fixture will be pin-drop silent (cheap ones can buzz or put out a very high pitched tone... great if you're into migraines) and the combination of a good bulb and fixture will produce zero (detectable) flicker. Unfortunately, the flicker can/will be tough to see until you use it for a while, and the same can apply on the noise.
In terms of brands, I don't think I've ever seen a Graphiclite box crap out.
edit: As I alluded to above and as swtethan mentioned, 'daylight' is the marketing term for 5000K bulbs and in the last couple years the fluoresents have made huge strides in getting better color - originally fluorestent tubes were/are WAY too cool/blue in color, and incandescents were WAY too warm/yellow. The first fluorescent (socket) bulbs were one extreme or the other but have now started to get better. The reveal bulbs you got are good, but have limited life and higher energy comsumption typical of incandescents.
The bottom line? I'd try the cheaper alternatives first, and they'll likely work for you. If not, buy a few bare fixtures and got some 5000K tubes and you're off to the races.