Cheap is not a $800 bike to me. I am currently unemployed and don't think a new bike is in my future. Finding used is not easy, because there does not seem to be much used "Cross" stuff in my area. I watch craigslist daily, but will not buy from EBAY anymore.
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2007 Jamis Ventura Comp
2006 Jamis Explorer 2.0
2000 Specialized Hardrock (bought used)
Swim, Bike, Run and sounds like fun