Best Buy via eBay offers the Razer Naga Chroma Ergonomic MMO Gaming Mouse
, model no. RZ01-01610100-R3U, for $59.99
with free shipping
has it for the same price with free shipping.) That's the lowest price we could find by $10. It features 19 programmable buttons, 16,000 DPI, backlighting, and a 12-button mechanical thumb grid.