LOL! you'll never guess! I just bought myself one! I've wanted one for ages, and I told the guys at my lfs about a year ago to keep their eye out for a good specimen!... I guess it was too long ago for them to remember that I've been wanting one, but I'm glad I turned up yesterday!
I went shopping for Dave as he's got a small 10 gal setup in his office that he's been wanting a fantail for. Not only did I see those imperial yellow comets (see my other thread), but I saw a perfect mirrorscale comet, he's about 4 1/5-5 inches long with a perfect line of scales down either side of its body!.. I swore that I wasn't going to get any more, and I didn't walk out of the shop with it, but I dreamt about it last night, and I haven't been able to get it out of my head since we visited the shop yesterday... Me BAD! I called Peter (the goldfish guru at my lfs) and just told him to put it on hold for me, I'm going to go back down there today and pay for it...
I've got a 20 gal rubbermaid set up outside that he's going to have to live in for now, but I'm hoping one day to bring him indoors to my big tank (currently treating for flukes.

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I'll definitely post you pics of it when I get it home!