SHANATANK-
If you're looking at an Allergy/shedding issue, please look up a SIBERIAN cat.
No joke, yes it's a breed. In fact, here's a link:
http://www.cfainc.org/breeds/profiles/siberian.html
Otherwise, if you're wanting to adopt, I'd recommend looking at a cat w/ a LONGER coat w/ more top coat than anything. And just brush it as often as you would your Yorkie. The only thing they're really prone to is dandruff if not brushed often enough. But if it's the hair you're worried about then a short coat really should be out of the question for you.
I've got a friend that competes w/ Somali's and Angora's under the CFA organization and this is where I'm getting most of this from, that and first hand knowledge.
Just my two cents. I hope this helps!
By the way, I ADOPT all of my kitties-except one I did buy that's CFA registered. lol (couldn't resist)