Carbonation, primming amounts?

Hi guys!
Id made a 4,6 gallon batch, i have to bottle tomorrow, and i dont have time of buying a diferent sugar than sugar cane one.
Can any body tell me how much sugar should i add for making a medium carbonated beer?
thanks!

Cane sugar is fine.  Assuming the beer is at around 68F 4 oz of sugar will give you around 2.5 volumes of CO2.

This is what I use:
http://hbd.org/cgi-bin/recipator/recipator/carbonation.html