Rights for installation and operation are documented here:

http://technet2.microsoft.com/Office/f/?en-us/library/89e4c579-5720-45e0-917e-abeb95266c3e1033.mspx the instructions here:

http://technet2.microsoft.com/Office/en-us/library/798aa915-7025-4adc-a210-4f6ff14c43fc1033.mspx?pf=true

A common question that comes up is can I remove the dbcreator right (this typically comes up in a shared sql environment). Please see my post here on why this right is needed.

Thanks!