some races I've designed/played with:
Nekolin: A race of nomadic cat people, they have strong senses of pride, honor, and are a bit materialistic (some mildly greedy, some wantonly). Basically, they love the finer things in life and have some pretty big egos.
Merlane: At one time, it was believed the merlane were human/merfolk crossings, but now they are thier own race. They have feat, can breathe air and water, and are peaceful, serene and shrewd diplomats/negociators/traders between the land and surface worlds.
Grasslings/Grass Nymphs: These dimulative humanoids are rumored to be part fey, part plant (grass). They are free spirits, inquisitive, and prone to hiding from anything bigger than them. They are exceptionally quick runners, able to cross a plain of grass in mere hours.
Orgallion: These humanoids are thought of to be ogrish brutes, but nothing can be farther from the truth. They are large, hard working hulks that love drinking, sports, athletics, and displays of strengh. Generally, they are peaceful until provoked and put more emphasis on strength, not smarts.
Vassal: Long ago a powerful necromancer-king infused his subjects with potent necromantic magic and vampire blood. The result was a race or near-humans, gifted with heightened senses, improved restistances and combat prowess, but weak against necromancy magic and opressed into submission by thier dark lord.
If you want full write ups, e-mail me and I'll send them to you. (any or all).