I got lucky and was able to photograph a bee while she was cleaning herself AND it turned out good too! To be honest, I didn't really notice what I captured until I reviewed the photo. I am pretty happy with it. But I am curious on how I could improve future macro shots... Well, if I get lucky and have the opportunity to photograph such a rare occurrence again.
I seem to remember being bemused by how slow the shutter speed had to be to allow the flash. I seem to remember (and now's not the right time for me to check), the actual flash is really short duration as that's a property of the flash gun, but of course you have to be sure the flash occurs while the camera's shutter is open! If the flash is the sole significant source of light, rather than a fill in, the effective speed of the shot is therefore much faster.
Do check this before relying on it!