[Skunkworks] Microft Licenses

Skunks, I need genuine windows 7 licenses. I would like to compare proffessional and enterprise in terms of pricing. For those dealing in them ,kindly email to my inbox or contacts of people dealing in them . And also include Microsoft office 2007. I have a round 70 computers. is microsoft still selling Xp licenses. If they are still in the market include the license price for I have some slow computers. Duncan.