razer deathadder 3.5g (the old one with the blue glowing leds) since it doesnt have to use razer synapse (it has actual drivers)
logitech gaming mice, the corsair gaming mice, if you dont mind synapse (which is invasive and a pain) then the newer razer gaming mice, i've heard that roccat isnt bad as well. avoid the r.a.t. mice like the plague.
you will have to sort through whats $50 and under though.
i know that i've seen the deathadder for less though.