Of course you're included. One entry for every coral purchased, one entry for signing up to the newsletter, and one entry for buying shipping before the sale.
The way that I select the winner is with random.org. Each SKU is alpha-numeric, so I can't just use the SKUs. So, I have a spreadsheet with every coral, and all other entries, associated with a number. Then, I draw the number and see if that coral has been purchased/it's one of the extra entries. If it's not, I keep drawing until I have a winner!
Speaking of which...
NO MORE ENTRIES!!! TIME TO PICK A WINNER!!!