I've got two cats, both of them shorthair. One sheds some, and regular combing helps a lot. But the other one sheds SO MUCH! If I pick him up, my shirt and jeans will be all covered with his hair. When I comb him, I easily get a comb-full of fur, or even two. And it's not like he's getting bald or something - he is a healthy cat with a nice looking coat. Any ideas why? I wish I could do something to reduce his shedding. 

i was reading ur post, i have a very very furry long hair cat, that i adopted 2 yrs ago, shes 3, now. I brush her forever it seems! with a good cat brush, and comb, its constant, she also, is forever grooming herself, and is it ever the cutest thing in the world!!
my mother has 3 short-hair cats, and they shed all the time to, and their very healthy. I hope this helps somewhat,