Let's ssee... in my entire gaming career, which spans from far before D20 existed... to current? It'd be a long list, but the ones I can think of offhand are:
I tend to play demon-heritage characters the most often. (Tieflings/half-fiends, etc.) I've also played a centaur, a human who was becoming a nymph, a half-janni, a succubus (back to the demon thing again

), an elf who became a shadow-walker (from WOTC's Unapproachable East, a creature who undergoes a ritual that infuses them with the essence of shadow), a human who became a soul-mech (from FFG's Dragonstar setting, they are sort of like an android), a red dragon hatchling, and an intelligent war-horse. Funny enough, from the PBP races I have only played an elf once, a half-elf a handful of times, a human many times, and never a dwarf, half-orc, or halfling.
One of the nicest things about 3E is that anything can be a character race, as long as you are willing to handle the ECL. And even then, with optional rules from Monte Cook, among others, that needn't even be a problem for long.
