Any stipulations? Similar size to the ED30, reasonable economy, <Xk miles, <X number of years, etc.?
Are you a fan of Fords? A few Focus STs now around that price range. Very reliable engine and they make a fantastic noise. They are thirsty though and not as attractive as some of the others you've mentioned but a lot of car for the money. Very tunable as well like the ED30 so you can really pump up the performance.
Like the MK4 R32 idea but are they now high mileage in that price range? Could be expensive???
Good luck with the search.