If I'm looking for what a car is worth, go to autotrader.com and do a search for exactly that year and I typically pick 100 miles for distance. If you look down at the bottom you get the most expensive, the cheapest and an average. That average is usually a pretty good indication of how much you should expect to spend.

If you want a car that's physically in good condition and not abused, I'd probably budget closer to $5000 or so, especially if your looking for something like an EX (power options, sunroof, little more powerful VTEC engine).