[Skunkworks] Needed: Information on Microsoft Products

Hi , Need to get some few facts on Microsoft products in this case GENUINE from those who deal (or have) with MS products. Kindly provide the best rates and real information and not just assumptions. i, Is Win XP Professional still on sale? If yes, can I get its copies locally? ii,How much does Win XP Prof. cost (considering its age) for 1 user, 5 user, 20 user Licenses or in the right licensing models they come in? iii,What are the prices for Windows 7 following the users licensing as above? iii,How much is MS Office 2003 and Office 2007? Do I require a license for each PC I install the office suite? Thanks, Chris_w. dabnix@gmail.com