when I click the shutter, there is a noticable delay between when the shutter actually releases.

There are some cameras that allow for just about fully manual operation. The Oly C3030 is one. With manual setting of focus shutter and aperture, the shutter snaps instantly.

I have to agree with Tony about camera size, if you don't carry, it won't get used. I think that was the one key factor in USR's PalmPilot catching on.

Glenn