budget include tripod and other steadying devices, wireless and wired mics, high capacity battery, and lights?

What are the expected lighting conditions of the wedding?

Indoors or outdoors?

Day or night?

Will editing be required? On what computer with what video editor?

The camcorder is just one part of a bigger system.

How much experience do you have using a camcorder?

Your post is similar to looking for recommendations for a pickup truck without telling us what the truck is expected to carry...