I find it hard to comment on the colours thing. While I realize I haven't spoken up till now, I'm not personally a fan of the light blue background your website has going as a theme, and the logos as they are aren't even set to that colour background, making it even harder to make a right decision.-worstje
True.
The whole thing happened so quickly that there wasnt much time to spend on design - well actually I spent a share of late nights in that role, but, the fact is - while I have some experience with layout - I'm not a designer...
I actually like the blue myself. I've gotten mixed responses from others about it.
On a white bg, the greish one looks best. The other two.. I don't know. The colours aren't all that bad, but I just don't like the chemistry the way I see it atm. Dropshadows are overdone imo and I'd recommend taking it out to look less cheap. 
-worstje
I'm happy with the design at any rate - there is a version for the site too - colours would definitely have to be changed, but I've got to install illustrator first...
EDIT/ ahh, I see you also posted on-site worstje
