Try this, They also have the full paid version if you would decide to upgrade, I was going to use it if I ever get started with a brick and mortar pizza place. And best thing is it's free!
We use square in our restaurant, with a ticket printer and a cash drawer. Software is free, just need to buy the hardware. It's awesome, great apps, easy to use/program/modify. Keeps track of everything also.
+1 on the square. We have four windows (trailer, not truck), two squares on the iPhones and 1 Square stand we picked up at Best Buy for $100. All squares tied into same bank account.