Eureka!
Got my trackball, and intalled the above mentionned driver, it works great on windows 7!
This trackball is exactly what I looking for and more... features I didnt expect are:
1-If i want to slow it down for precision, I just hold Ctrl, yay!
2-If for some reason I need to use in orthogonal(locked axis) just hold shift
btw, incase you use ctrl click or shift click already for other stuff, those two keys are configurable with either alt, shift or ctrl
what strikes me is how comfortable the wrist rest is, it totally changes the experience
the scroll ring is sweet, not nearly as noisy as in the youtube view on this topic, but by default the scroll was a bit erratic in chrome, couldn't find the right setting for it, so I installed this chrome extension SmoothScroll - Version: 0.5
Voilą!