I LOVE HORSES, BEST OF ALL THE ANIMALS
Chris,
The Leica D-Lux 4 isn't bad. Also, some of the Panasonic Lumix range (which have a lot in common with those baby Leicas including the glass) are nice. Those are pocketable.
If you can stand a tiny bit more size, the Canon Powershot G11 is waffely versatile- shoots raw, has good noise performance, nice manual control. It's somewhere between "pocket" and "bridge" size, about the size of a 35mm rangefinder. That's a fantastic camera for people who want one camera to cover all eventualities without breaking the bank. Focussing suffers a bit from "Canon disease" (their autofocus is a bit pants), but it generally works ok, and it's fun to use.
Canon S90 is pretty nice too, and is smaller, and also shoots raw. Can't comment in detail as I only had a brief play with one, but the output seems ok- maybe look for reviews.
Personally, I carry a Ricoh GR 3 Digital as a pocket street shooter. It has a 28mm equivalent fixed focal length lens, at a very snappy f/1.9. It focusses and works in conditions where I have trouble even seeing. The noise performance and image quality are very impressive for a 400ish quid camera. I have produced images with it that give my DSLR a run for its money, on occasion (when developed properly from raw, of course). It's a tiny little machine, also.
The GR Digital 3 is one of the most fun to use cameras that I have ever owned, but I accept that it's a bit specialised for some folks.
End of waffle, hope that helps, anyway.