I just bought the Logitech G203, one of the best mice I've ever owned!, (came from Razer Copperhead), I never even new it was such a popular 'budget' mouse, I just bought it because it was local to me.
It's fantastic for medium to small hands, nice matt finish, not that horrid rubber coating that eventually rubs away, the sensor feels amazing, really smooth but also precise, no angle snapping and little to no acceleration perceived.
The tactile feedback on the left and right buttons feels really nice and clicky, quite loud, perfect mouse for claw grip, and good for palm grip on smaller hands, the only real negative I can find is the scroll wheel doesn't feel fantastic, feels a little cheap but I can live with that.
And lastly the RGB lighting is a nice bonus, bright and seems to be of good quality, transitions between the colours very well and smoothly.