Hi,
I was looking for a new cheap mouse instead of my old one, and came across this one:
http://www.ebay.com/itm/New-Ajazz-8D-Gr ... 35cd26a12d
It's surprisinglty well built for it's price ($25)
has 2000 dpi sensor - Avago ADNS 3050, has 4 modes of operation which can be switched. it has LED which shows which DPI set is selecetd.
up to 1000 Hz polling rate, which also can be changed.
2 side buttons
one weird button on top which double click, not really used, but also doesn't hurt.
It has symetric design, and it's also quite big (not ergonomic)
Overall it seems to be a nice mouse after a few weeks of use, I got use to the size which made it a bit uncomftorable at first. nice buy for those who doesn't want to spend a lot of money, or doesn't need high-end mouse.