Shutter actuations?

<p style="margin: 0in 0in 0pt;" class="MsoNormal"]<span style="font-family: Arial;"]<span style="font-size: small;"]I see comments from some that they purchased a used camera with so many shutter actuations.<span style="mso-spacerun: yes;"] How do I tell how many shutter actuations I have on my XTi and on my 5D?
<p style="margin: 0in 0in 0pt;" class="MsoNormal"]<span style="font-family: Arial;"]<span style="font-size: small;"]
<p style="margin: 0in 0in 0pt;" class="MsoNormal"]<span style="font-family: Arial;"]<span style="font-size: small;"]Mark<o:p></o:p>

There's a handy dandy script floating on the internet somewhere that tell you this. Do a google search for Canon Shutter Acutations count or such and it should pop up. I have it, just cant for the life of me remember where I got it from.