For starters, more megapixels does not always mean a better camera. You have to take account of other things, such lens quality, and other technical details. A lower megapixel camera with a great lens, white balance, FCC (I think?), can take better pictures than a 10 megapixel camera. Using curremt exchange rates for euros (Euros correct?), it seems you want to spend about ~200 US. That will get a pretty damn solid camera, plus loads of memory.
Other things you may want to consider are things like internet connection to things like facebook and youtube, where you can directly upload pictures over wifi. Also, do you want to shoot HD film? Hell some cameras even shoot 3D photos now, not that you likely would care about that.
Also, one general rule of digital cameras is that you want lots of optical zoom and little digital. Digital usually just turns photos grainy and is rather unpleasant. Another is to consider brands. Some brands such as Kodak, generally have a solid construction, while off brands may seem nicer due to undercutting the price, but they sacrifice it through cheaper parts.
My suggestion would be this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16830170368
Unless you want something specific, this takes really nice shots. I know because I bought this one as a wedding gift, and I've seen the photo quality. That would leave you plenty of money to go pick up a nice beefy 8-16GB card and even a case if you want.
Hope this helps a bit.