Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
I always ask, but nobody seems to answer -- is there a good source for a cheap (can be refurb/used) 20GB units? I'm hoping they're near their bottomed-out price, before they start getting rare as people realize they're actually better in most ways than the 40GB units. I've seen a few places online, but nobody has them as cheap as (I think) they used to be at EB.