I was looking at ways to carbonate individual bottles as well. I drink my own beer yeast and all but when I give home brew as a gift I get compliments but there is almost always a "compliment" regarding clarity. I say "compliment" because they usually say something like "It tasted great and was pretty clear for home brew", which tells me that it's getting stirred up some way or another before/during pouring.
Anyways, I wanted to clear it like wine by killing the yeast and carb it with a tablet or something so I'd have a product without a little yeast cake in every bottle.