Please post what you have, I'd be interested in helping.
Please note that DnD wiki 4e is still in homebrew, and anything I help you with you'll have to run by your DM first.
Other things to note:
In PHB 2 for 4e a race was put out called the Shifter. If you've heard of them this isn't informative, if you haven't here's the basics.
"In broad strokes, shifters resemble humans with animalistic features. Their bodies are lithe and strong, and they often move in a crouched posture, springing and leaping along the ground. Their faces have a bestial cast, with wide, flat noses, large eyes and heavy eyebrows, pointed ears, and long sideburns. The hair of their heads is thick and worn long. Shifter skin and hair are usually some shade of brown. -- Razorclaw shifters are descended from weretigers and are more catlike, particularly when using razorclaw shifting. -- Shifter Characteristics: Active, alert, fierce, freespirited, intuitive, perceptive, predatory, self-reliant, unrestrained, wild." 4th edition players handbook 2; pg 17
Here is a pic of the female shifter;
http://i626.photobucket.com/albums/tt348/enosan/shifterfemale.jpg
Maybe that sounds somthing like what you're looking for. If so, I'd ask for a race substitution from my DM seeing as that is a official character race put out by WotC. If not, you/we may be able to base the races history using some of the shifter heritage. -Shrug- Up to you. Hope this was helpful