Every serious sportsman knows that by late August, the Scottish Highlands offer an array of riches. Grouse season is a couple weeks under way. Deer stalking is at its peak, and the fly-fishing doesn't get any better. Sotheby's annual sale of antique sporting guns at the Gleneagles Hotel in Scotland is popular this time of year because winning bidders can walk out the door and take to the field with their elegantly engraved rifles and shotguns. City bankers and sundry members of the English upper class have always favored the Highlands in August (and the golf is phenomenal, too). But...