Printing FedEx shipping labels

We’re starting an online business and will be using FedEx for shipping. We have a FedEx account and in a couple months will have an online shopping cart up with built in FedEx integration but for now we just have an informational website up and we’re processing and shipping orders manually.

We want to be able to print FedEx shipping labels, just seeing if there are any special printer requirements for doing it on a Mac. I searched the FedEx site and the net in general and didn’t find much information on this topic, so thought I'd try here.