He is too classy a guy to promote his own work, so I'll do it for him. AGF's own Derek Coombs has composed some outstanding tunes, and he makes some of the arrangements available on his website. You can hear most of them on YouTube. I've taken advantage of his generosity myself.
(His arrangement of "Freight Train" is the best version I've ever heard of this tune, and there is no shortage of variations.)
http://dcoombsguitar.com/Download1.html