My radiator went out a couple of weeks ago. I got an ebay radiator (CXRacing, the original 02 style). If you get the updated style you will need to get 4 extra parts which will run you anywhere from about $50 to $70 depending on if you get it locally or online.

I've never replaced my radiator before but with the service manuals and some research I was able to do it in about 2 hours.

For all the parts, it cost me about $180. New radiator, hoses, clamps, fan bolts (OSH for like $3), coolant, thermostat and gasket (you will need more since the radiator is bigger). You will need to trim the hoses if you get an aluminum radiator (1/4 inch off of each end on both upper and lower hoses).