real time object tracking (need your help)

--- Quote Start ---

I don't know your budget, grab some board from terasic, this one looks to be right for your application: http://www.terasic.com.tw/cgi-bin/page/archive.pl?categoryno=139&language=english&no=670 You could use stepper motors and drivers from 3d printer, look at the reprap.org project.

--- Quote End ---

Thanks I'll check them out. and the budget isn't a problem for this project.