Thanks for the great write-up, KA-BAR. I've been using a shotgun as a primary for a while now since my M4 broke (damn you ICS) and it's actually been pretty fun. It certainly is a challenge, though. My TSD may not have the range of an AEG, but it's a blast when you get that well-deserved kill.
And as for the Magpul DVD...ordering it tomorrow.