Eesh! 2300 EUR is like 2200 US Dollars! That's a lot of cash, and should net you some high quality lap topping! I personally got to play around with a Toshiba Satellite (6105, I think) just recently, and I was able to play some of the just-released 3D games on it with almost no slow down, and all effects at maximum. You should be able to find it around your price, too. You can also try going to PC World's website at:
http://www.pcworld.com/reviews/article/0,aid,104393,00.asp
This ranks the top high-end laptops, as well as the top bang for the buck. It's all their opinion, of course, but seems to be pretty helpful.
Good luck!