I've had good experiences buying guns from Kirby Hoyt at Vintage Doubles, Glenn Baker at Woodcock Hill, and Mark Reynolds (MW Reynolds) here in Englewood (I've sold some guns thru Mark as well). I've also heard good things about Hill Rod & Gun up in Montana, William Larkin Moore down in Scottsdale, and George Caswell down in Oklahoma. It always helps to know something about what you're buying before you call, but these folks have been good to deal with. (In the interests of full disclosure, I work part-time at MW Reynolds.)