I have the unit, just need to pick up some accessories....I've looked through google and the yellow pages, but haven't found anything.

Depending on what you have used G.I. stuff on ebay can't be beat.

The problem with eBay is that there is really no way to tell what you are getting until it is in your hands.  Several times I have purchased a product that was described as the real deal, but turned out to be a cheap airsoft copy.  I'd much prefer to see the item and have it in hand before purchasing it, avoiding the hassle of dealing with eBay and PayPal, returning the item and trying to recoup the funds.