NEwest

http://i220.photobucket.com/albums/d...agentcolor.png

http://i220.photobucket.com/albums/d...aceagentBW.png

I like the first one a lot. The only thing I would change is the text.

The little 3d render thing you used was cool, but in the context of the sig, doesn't match and ruined it.
It creates a strong focal point which, in this case, isn't good.

The colours are nice though.

And I would reconsider the text.