Buyer beware in free agency. Last July, the New Jersey Nets gave Travis Outlaw the biggest contract of the four free agents they signed after striking out on the summer's big prizes, while the Phoenix Suns lured Josh Childress back from Greece with a five-year deal as part of a sign-and-trade with the Atlanta Hawks. Less than 12 months later, both teams would love to get out of those contracts. After colleague Chris Palmer looked at the top-tier guys, here's a warning that the history of free agency shows more misses than hits. Which players could be risky signings this summer? Here are five who appear overvalued.