Amazon with PictekDirect has the Pictek 7200 DPI Programmable Wired Gaming Mouse (Black) for $16.99 - $3 off coupon (check green "Save coupon" box) - $5.10 off with coupon code XJVFWLCM at checkout = $8.89 with free shipping on $25+ or with Prime.

Features adjustable 1200 - 7200 DPI range, up to 1000Hz USB high-speed transmission technology and 7 mouse buttons.