The Razer-hater brigade is strong on GAF, he stands no chance.
We have a few threads about gaming mice, latest was
http://www.neogaf.com/forum/showthread.php?t=1056797. There's too much choice to say 'buy this' and it depends on your hands and grip style but if you want no acceleration that already limits it to optical mice (I guess, maybe there are laser ones without?). I see you're from Germany so you could for example go
here and sort them by rating and cross-check the good ones with what people are saying in the threads. Myself I'm using a Roccat Kone Pure since last year and it has been great, they often get overlooked for whatever reason (though had some built quality problems in the past too). And don't ignore some smaller brands, for example I've been eyeing the fUNC MS-2 for a while, Zowie's aren't available everywhere, same goes for Mionix.
Wireless gaming mice are so 2010.