I have used msft Office 2000 Small Business since first computer usage in 2000. That was free then with a new pc. (Bill has gotten more greedy since then. ) Like Windows 2000 Pro you can pop that baby in any pc you wanted to and no shutdown from msft. Ok, i have been looking at X-study charting and looks like it requires EXCEL 2002 or 2003. No problem, but was wondering if either one is subject to Big Bill breathing down your neck if you installed 2003 in more than 1 HOME PC? What about OFFICE 2007? No big reason to go that route? Also, could i upgrade from Office 2000 to 2003 or would i need to buy a copy of OFFICE 2003 FULL version. THKS