Our first-ever Twit-Kicks All-Star, Andy Oliver, is also one of the biggest sneaker bargain-hunters on the net. In his weekly column, Andy helps save you money on sneakers everyone else is paying a grip for.

Andy says: "Nike has slapped the Lunar midsole on a bunch of classic models this year. Usually, sneaker hybrids goes over like a fart in church, but the response to most of the Lunar models have been positive. That takes us to this week's sneaker deal, the Nike Lunar Mariah. Crazy light and comfortable with a unique colorway...this sneaker is a big win. Even better is that these will go through eBay for somewhere between $35 and $50. If you're too geeked on these to play the auction waiting game, the Buy it Now price is $69."