Is it a bird? Is it a Lear? No, it's Kelly Foster, recent emigre (with husband wood artisan Mason) from Boston, ski instructor extraordinaire, realtor extraordinaire, and new-light-on-the-social-scvene extraordinaire. "Kelly's already one of our top two sellers," says her boss Jordan Thorne. "She can charm the pants off you, and she's got energy to burn and then some. Her first day of ski instructing this season, she got to talking to one of the women in her class, and ended up sellng her a condo over apres-ski drinks at 221."

    Asked about her vibrant personality, Foster laughs: "Everyone says I'm like yang and Mason's like yin. I'm straight and he's kinda more the hipster, I'm the cheerleader type and he's, I don't know, a quiet version of Zorba the Greek." Does it all balance out? "Hey, we've been married for five years, and no complaints so far-- no big ones, anyhow." And then her beeper goes off and she's out the door at warp speed, on her way up the Mountain to give a solo lesson to the CEO of a Fortune 500 megacorp. "The Zoomin' Human," as some of her fellow-instructors call her, is gone.