I own a Lycosa and Deathadder.
I'm having issues with the kb but the mouse is fine.
I also have a Logitech G110 and MX-518 combo on another rig.
The Razer combo is sexy but cost more then the Logitech combo.
Performance wise i give the Logitech a slight edge.
Both set-ups include a Steelseries Qck mouse pad which i recommend for smooth performance and reduced mouse feet wear and tear.