We're not exactly sure who wants to dress like plaid-favoring David Arquette, who's known not only for being Mr. Courteney Cox, but for his oftentimes daring (and just plain odd) fashion sense. But the actor and his friend, singer Ben Harper, are launching a men's collection called Propr. The duo plans to show a few looks during New York's Fashion Week, with a preview scheduled for September 8. David is a designing fool, apparently, who can't wait for his collection to come out. "David is so excited about his fashion line," said an insider at a party at Il Sole on Wednesday night. "He was telling everyone about it, from guests to staff."