You'll pay more at HD than necessary, though I'd price there. Here's a better example: http://www.harborfreight.com/16-horsepower-submersible-utility-pump-68422.html
Sorry to bump a dead post, but do you really need this much pump for this? I'll be setting this up soon as chilling my wort is one of the longest and most wasteful parts of brew day for me, but I was hoping to get away with a tiny aquarium pump (closer to 10 dollars) We do this with the rotovap in my lab, and a relatively low flow of water is all that is necessary. In fact, I thought I read somewhere that the slower your IC flow, the greater your cooling efficiency. Thoughts?