I did a little mini-review of a few popular chronographs a year or so back. I ended up with a ProChrono with the indoor lighting setup. It has not let me down thus far. I compared it directly with an older model "Chronotech" which I also have in my possession as well as one of those Radarchrons. The ProChrono was fairly consistant with my Chronotech though all three gave slightly different speeds for all of my various arrows.

There is another brand, the name escapes me right now, that also usually comes highly recommended. The only thing I can remember is that one of the models was an "F-1" or something similar.

Hope this helps somewhat.