I have a 2004 cr125, it's clean with low hours but has two dented radiators from wheelies gone bad (no leaks, just cosmetic).   I have the
oppurtunity to trade it for this 2000 cr250
http://kansascity.craigslist.org/mcy/617671688.html

Any advice on whether it's a good trade.  

Thanks  

are you looking for something that will loop out even faster than your 125??
the 250 looks good and is worth roughly the same.
only you (and the guy with the 250) will know if the trade is worth it.  

The bike looks in good condition, and I can tell you the model year is one of Hondas finest.  If you are ready to move up in power this is a very powerful bike.  Mine gives up nothing at the track to any modern bike 2 stroke or 4.