As Chris says, first, congratulations. I hope your wedding is as happy as Frances's and mine: we were married in 1982.
The best wedding photographers are seriously expensive: $5000 and up. Anything under $2000 is likely to be a bit risky: as mentioned elsewhere, too many 'second jobs' (
MAKE $$$ IN YOUR SPARE TIME...). So do you need a wedding photographer at all? Only you and your fiancée can answer that one.
This is my second marriage (the first, 1977-980, didn't take, though Cath and I are still friends) and I didn't have a paid photographer at either. Nor do we miss the pictures. Friends took snaps (mind you, some of them were professioonal photographers, though not wedding professionals). Some we prize. Some we don't. The important bit is each other, and besides, we just didn't see paying hundreds of pounds (as it was in those days) for pictures. Hang 'em on the wall? Nope. Portraits maybe. Wedding pics, no.
From the other side of the counter, I've shot friends' weddings
as a wedding present, when I couldn't get out of it: close friends, usually poor, to whom a few hundred, let alone a few thousand, was a significant expense. There's even a module on it on my site. Here's a quote from the beginning:
This is not a guide to shooting weddings commercially. We have never done this, and we never want to. Rather, it's about shooting weddings for friends. This may either be because they're too young and broke to afford anything else (which accounted for the first two that Roger shot), or because they're very old friends and really, really want you to shoot their weddings: you would offend them more by refusing than you would by doing it on your terms. (
http://www.rogerandfrances.com/subscription/ps weddings.html)
I hate shooting weddings, but I'll do it on those terms. Call me a cheapskate; say I'm taking bread out of the mouths of professionals. I'll put my hand up. But if the money really is tight, or if BOTH OF YOU just don't think it's worth it, a reliable friend is (in my book) a better bet than a cheap (so-called) professional.
Agree terms beforehand. Expenses? Timescale? Number of pictures? Write it down. We've never lost friends over it. There's no reason why you should, either.
Cheers,
R.