Shutter lag was always the biggest issue for me with digital cameras as I usually shoot people and expressions are very important. On the issue of eyeglasses, most SLRs and DSLRs have a built in diopter to adjust for less than perfect vision. It's just a little lever around the viewfinder...
The big question is how you plan to use or think you will use the camera. If it's vacation and family stuff, I'd go with a higher end point and shoot that has all the benefits of a P&S but will come with some amount of control of shutter speed and aperture. If you find you are developing a...