My GeForce 9800 GT is slowly dying. I'd like to replace it with something similar, but my budget is pretty tight at the moment. I can't really spend more than €50 on a new card. I've already looked around a bit, but I'd like the advice of people here too.
I don't really need anything much more powerful than my old 9800 GT, since my monitor is only 1280x1024 and I'm on Windows XP. But if my budget allows, then why not more power?

Most places seem to recommend a GeForce GTS 250 as a good budget gaming card, and I've been able to find one online, second-hand, for about €45. I don't know anything about ATI/AMD's offerings though, and its naming system is even more obtuse than Nvidia's. Halp?