Thank you for your comments. I know he's a mixed breed, and he basically looks like a lot of long-hairs I've dealt with, although his tail is still fairly impressive.
I have a double edged comb for him, although I sometimes miss the belly because he bites sometimes. :)
The reason I thought...
He's probably got a few different breeds in him. Persian would make some sense with how thick his fur is. I thought he might have a little Maine Coon, both for the fluffy tail and the squeaky voice, but he doesn't have big paws or tufted ears.
Oh well, either way he's cute.