If Aperture is to be believed...

I went to find out just how many shots my 30D has fired ever since it
was manufactured.

The shutter in DSLRs have a certain lifespan. The 30D is advertised to
have a 100,000 shutter cycle life. So, worried about the possibility
of my camera failing soon, I went to investigate how many shots I have
taken.

Based on the file numbers, This was what I gathered from my Aperture
Library.

Bought: June 2007, unknown number of shots.
Shot number 9999 = 9 Aug 2007, NDP
---------
Shot number 14092 = 22 Dec 07, choir concert
14093 to 18209 missing. confirmed - did not lend camera to anyone. so,
take away 4118 shots from the subtotal.
19999 = CCA Display 08
---------
29999 = Oct 08. Gone missing. lent?
---------
31122 = Last photo from Choir trip 2008.
---------
31878 = last shot in the Aperture library.

Thus, Total = 31878 - 4118 = 27,760 shots

I could have left out some shots from my calculations, or added too
much from anyone who changed my camera filename sequence. But this is
the best guesstimate I can give.

So, assuming an average rate of 1,321 shots a month,
my camera can last 75+ months,
or 6+ years,
or until September-October 2013!