I installed Office 2010 on two different test machines, one running Windows XP and the other running Windows 7. In both cases the standard installation was fairly painless, clocking in at less than 20 minutes from start to finish. Requirements to run Office 2010 vary depending on which operating system you're running, but you'll need at the very least a 500MHz processor or higher, 256MB of RAM (512MB recommended to use more advanced features), and Windows XP with Service Pack (SP) 3 (32-bit).
Connectivity to Microsoft Exchange 2000 Server or later is required for certain advanced functionality in Office Outlook 2010. Instant Search with options that appear as you type requires Windows Desktop Search 3.0. You will also need Windows Server 2003 with SP1 or later running Windows SharePoint Services if you want to use the more advanced collaboration tools. We were happy to see that Office 2010 didn't litter our desktop with new shortcut icons, leaving it up to us how we wanted to launch the suite.