$700 CA isn't a rare bargain, but in general that's a good bike. A month ago I bought a used Trek 2100 (a 2005 model originally purchased new in 2006) for $400. My 2100 is basically the exact same bike but with a 105 group. So the Ultegra group on this 2300 is a step up from there. Looks like new Easton wheels. Everything else looks good too.

It would be a good deal at $600 -- so if it fits and is in as good a shape as it appears then why not $700?

When you get there search high and low for a problem or some issue he didn't mention and use that to drop the price to $650.

The 2300 is the same frame as my 2100. It's a custom grade Aluminum that's light and strong. It was one of the Trek frames still made in the USA, which is good. The carbon fork and seat stays help with isolation.

Here's some links:

http://www.trekbikes.com/us/en/bikes/2004/archive/2300

http://www.bikeforums.net/showthread...k-2200-or-2300

One more thing... if you were to look for a new bike with the same group and similar construction frame you'd be paying $1,600 to $1,800 for it.