Nice thread title.
Originally posted by jennverr What about a used K20d? or something... Just thinking out loud. Or, how well do those cheapy plastic rain cover things really work?
A used K20D is an excellent camera, and you should be able to get one (or a K-7) with a WR kit lens for a pretty good price on the marketplace here. Or look into the "W" series of rugged compact cameras, since they are not just "weather resistant" but completely "waterproof" (I have a W-90 for underwater photos, but I think the WG-1 or WG-2 are even better).
Personally, I'd opt for either of these over one of those "raincoats" since they are only good to have if it's actually raining, and won't help you take pictures if your K-x decides to conk out during the trip...