Shopping for Anime Cels

I'll be going to Japan in a few weeks and while I've been there a bunch of times, I've never had a full time job like I do now. And I've been saving for the trip for a while...

Given that, I was hoping to buy something unique, and given I'm a huge anime/manga fan, I was hoping to buy an original Anime Cel.

I had read that Commit was a great shop to do this but from what I've read they've actually closed... Is that true?

Does anyone have other suggestions as to where I might find something of this nature?

Cheers

Nakano Broadway always seems to have one or two shops selling cels; I think one is even run by Mandarake, who are unlikely to go out of business anytime soon.
http://www.whereintokyo.com/venues/25361.html