Not sure if this is what you need - but someone on the Kitchens forum (sorry I don't remember who!) posted this when I was working on my kitchen:

Personally, if you can put everything on dimmers, I say go for it. All of the lights you mentioned (except the one over my sink) are on dimmers. I would like the one over the sink to be on one too. You can't beat the ambiance that dimmed lights give you. You are able to do so much with your lighting.

I don't want this to go off topic for the OP. I am offering advice based on recent experience with purchasing home parts yourself, that's all. Brickeyee, I know you're a plumber from your posts. But really, at least my plumber could have said: "look, if I buy and install the WHOLE HOUSE WATER PRESSURE REDUCER instead of sending you to buy it, the entire job WILL BE UNDER WARRANTY". Given a choice, I think most of us prefer to have the part and labor protected by the professional plumbing company if possible. Plumbing, electric work isn't cheap and is always looked at in detail upon resale. Just saying...

It would be unlikely (though not impossible) that there is a GFCI in play here. Pretty much from the time countertop receptacles required GFCI, they were also required to be separate from the lighting. Of course almost anything is possible in a retrofit in older houses. You should certainly find the breaker/fuse involved. It's possible it's already tripped and you over looked it (move the affected handle full off and then back on). It's also possible that either the bulb blew (they don't like getting wet in most cases) or the fixture was damaged by the water. But you definitely need to get to the bottom of the water problem. The electrical issues are the tip of the iceburg. Structural rot, mold, etc... are likely to ensue. It's also possible that it's a pipe leaking (and perhaps a waste pipe...been there, done that).