[dtw]

I did a bit of DTP and graphic design when I was in undergrad- including a few business cards. The logo does look a bit awkward. What stands out to me is that the text/numbers in your logo are in a smaller size than your body text. This is striking (in a negative way) and causes the text to be "lost" in the logo. Upsize it a bit, and use the graphic to make the text stand out more. The "2000" is not meaningfull and the "air corp" is ambiguous; perhaps these lost meaning when you removed your business name.

The color scheme is great- I'd stick with it.

I agree with the above- your clients do not have time to be shown this board and convinced you are an enthusiast- they will view the 911 being associated with your business as in bad taste.