Ziggy, don't forget that you have until the 11th of July to preorder the Windows 7 upgrade for $50 (for Premium) or $100 (Professional). Just make sure that whatever you order has Windows Premium or Professional (not Ultimate) and that you preorder the matching upgrade. Price goes up to $120/$200 after the 11th.

Premium: http://www.amazon.com/gp/product/B002DHLUWK

Professional: http://www.amazon.com/Microsoft-Wind.../dp/B002DHGM50