Just a note, that pic is NOT MY FLOORS...yet. Just got that off the internets.
Chris Moore did Black epoxy for his gameroom floor with some pacman-theme stencils and here is a link from his website with pics:
http://www.tokensonly.com/2008/10/misc/basement-floor-epoxy-with-a-twist/#more-543
Bill
Yes, Chris' floor is epic!
Can't really think of any "gotchas" with black floors, that's why I asked. I've heard black walls are hard to keep clean, and make the room really hard to light up. I plan on having some kind of non-dark color on the walls eventually, so I'm not worried about the room being too dark. Plus the flakes I'll be throwing down are white, grey and blue. So it won't be completely dark.
Have you already put down the epoxy? If so, you're too late to spread flakes. You need to sprinkle the flakes when the epoxy is setting up, still tacky. If your epoxy is already dry, your flakes wont stay in place as you roll on the clear coat.
One note on the clear coat - make sure you hire someone GOOD to do that top coat layer. You want a little bit of ripple (for traction) but you don't want the coat so textured that you lose the sheen of the gloss on the coat. It's a fine line. My painter made my poly coat a bit too rough, and it's too ripply for my taste. But what's done is done - only way to fix it now would be to cut the floor down and start over from scratch.
FYI to the OP: I got your PM, and yes, I'm out of the blue UV flakes. But I can direct you to the correct place to get them if you need them.
Oh no. My schedule is: today - finish etching, tomorrow - primer, Wednesday - first coat epoxy, Thursday - second coat and flakes, Saturday - clear (time permitting). I just ordered the flakes from originalcolorchips.com with two day shipping.
I'm doing all the labor on this. If setting up the clear is tricky, maybe I'll just put that off for later.
I'm surprised you can't just cut it down to the epoxy if you mess up. If I was hired to apply that stuff for you, I'd rather you be safe than risk you getting hurt on it. Maybe you can polish the finish a bit to take some of the ripple away? (maybe a little Novus 2?

).
Is your color chips source different than originalcolorships.com (aka Norkan, Inc.)?