Replica jerseys on sale at ESPNshop.com...
Basically, it's as follows.
Replica - Numbers are ironed on, Names are ironed on, the little patch that houses the name is sewn onto the jersey though.
Premier - Numbers are sewn on, not sure if the names are sewn or not, would imagine they are though. Higher quality than the Replica
Authentic - What you see on the field.
Thanks for the link, man. I'll probably hook that up.