DISC-FF

I've lately been getting problems with my mouse so I'm going to replace it, because of this I would like to know what mouse I should get.

Price: <= €100,-

I'm looking for a mouse that has great accuracy, any other buttons beside mouse 1-3 are welcome but not needed.

What was your old mouse? (And are you still looking for the same brand, or does it not really matter? =p)
Preference on wire or wireless?
Does the mouse need to be customizable? (Need an example? Check out Razer Ouroboros. Customizable to the max. €130,-)

Logtech G502 !

Got him myself, easy to adjust litlte weights at the bottom compartment; + some extra buttons at the side/top-ish wich are custimizeble :)
Logitech has great product software where you can easy make a profile for DPI and button config, the best part is the quickpreselect DPI button, for (as example) playing sniper, you hold that button to lower the DPI, so you can aim easely

Wireless is more favored then wired but ti's not that big or a deal really, I'm also not looking for a specific brand. Customization isn't needed.

http://us.msi.com/product/mm/Intercepto ... o-overview

this mouse is amazing. and its like 50 bucks. http://www.newegg.com/Product/Product.a ... 6826554010

It would probably help to know how you grip your mouse.

http://cmu.coolermaster.com/mice-grips/

I'm personally a palm/finger/hybrid gripper, which is why I like my Mionix Naos.