I used the Dell System Build and Update Utility to install Win7 on my PE T610. From the System Build disk, i selected Win Server 2008 R2 as the OS to install. I believe this creates an install environment with appropriate drivers for your hardware. After a restart, the System Build environment asks you to insert the OS install disk in which case i insert my Win7 install disk. The process then continues as any normal win7 install process. No need to load drivers, etc as this has already been done by the build utility. Do note that some management features will not work without effort. OMSA for example needs some server OS functions to operate so will not run easily on a desktop based system. It then makes it harder to administer your machine from within windows. 
I searched on the forum search but could not find a clear answer. Will Windows 7 64bit work a Poweredge T110 ii? with harddrives that are mirrored, and the network drivers? I plan on buying a brand new T110 ii, but I looked at the drivers support and did not find Windows 7 on that list, only server 2008 and others. Please advise. I want a server grade system for reliability, but with a client OS.    
Will windows 7 work on a PowerEdge T110 ii? Network Drivers?