Looking into x64 system

Anyone have any comments on the performance of Solidworks 2010 on an x64 system? The last time my company upgraded systems we went to 64 bit and had a lot of stability issues with SW. Actually ended up reverting back to 32 bit OS.

Looking to upgrade again soon, probably a dell T5500 with Windows 7. Any opinions are appreciated.

SolidworksAdministration