I love reading posts about that very first sale. It's so encouraging. I remember when I got my first affiliate sale and I felt so proud of myself. Congrats Mike, keep it up.
Just wanted to say don't forget how you feel after this sale, you will need the energy you have now to push you forward, and when things are slow you should use this as motivation to write one more article or tell one more person that day about your site, because after all selling online is just another numbers game.