none of these are *bad* choices, given what you say you want to ride. My personal choice would be the Trek (but I doubt that it'll stay that cheap on an eBay auction, and that's the worst way to buy unless you've already ridden one exactly like it) and I'd lose the cranked CF seatpost. Given your location, you'll have to get very lucky to find an equivalent bike for less than $200. I don't think these prices are out of line, but I'm in a market where junk is offered for $300 and up, with not so much as a blush.