Thanks for the help and ideas everyone! Here's what I'm gonna get...
Blackwater Retention Lanyard - drilled out the grip on my Glock to accomodate the lanyard
(3) Grimloc Carabiners - Wahtever I find them useful for (probably 550 cord, zipt ties, and what War-Dog mentioned)
100 ft. 550 Cord - Eh, pretty much everything.
Coyote/Black Shemagh - Just for looks. And kicks. And giggles.
One-Point bungee sling - Kiiinda self explanatory.
Any other tips/ideas are very welcome, after all, I'm not the only person this thread is helping (I'm sure).
Oh, and one more addition to this thread.
I recommend getting optics of some kind, because they look cool, as well as helping with faster target acquisition/zoom/etc. Personally, I'm a fan of the G&P Aimpoint Replica.
(Get it at ehobbyAsia/their ebay store.)