Far out shane... My brother got a large plate sized one across the spread of his back and another on his arm thats a fair bit smaller. Now he is a very tough guy but he said he was struggling with the one on his back. The process he described was... less than appealing.
I was going to get either "Semper Fi" or "Who Dares, Wins" on one of my arms. And/or "Such is Life". Not too sure yet, we'll see how I go. In explanation, Who dares, Wins is a moto of the british SAS (Special Air Service). Best special forces in the world. Semper fi is a USMC thing.
But I'd be more inclined to go Australian with: PERCUTE ET PERCUTE VELOCITER (STRIKE AND STRIKE SWIFTLY) or DOCTRINA VIM PROVOMET (KNOWLEDGE PROMOTES STRENGTH)
I've got a brother in Afghanistan, so I've got great appreciation for the ADF. I mean they treat their soldiers like shit and don't seem to care, but I appreciate what it stands for.