Firstly, i've just passed my 500th coin posted on omnicoin.com. Now standing at 507 with only another 12,000 or so to go. It's a pretty hard slog I can tell you!
See my omnicoin coins here: http://omnicoin.com/?collection=Ian
The second milestone was today when the 666th individual seller gave me positive feedback. That means that today, 22nd June 2006 I am officially identified with the number of the beast. So if I end up doing something totally out of character you will know why. :-)
I always said to myself that i'd start selling off items that no longer fitted in with my collecting interests when I got to a 666 feedback rating. Mind you i never expected that i'd ever get there in the first place, but i've been putting off doing a clear out for years now. So now that i'm officially a 666, I can't hold back the beast any longer. I've got a disposal job on my hands getting rid of all my modern stuff (ie 1880 - present) including proofs and proof sets etcetera. I've more of a problem deciding where to start than anything else.

