Hey Richard!
Socket F has been around for a year and is a server based processor. Its best advantages are in the power consuption area
You can review info on it here:
http://www.anandtech.com/IT/showdoc.aspx?i=2892As for an upgrade to your current processor, I dont think you would see any significant change but certain steppings of that model may produce much higher clock ratios.
You would probably be better served to leave as is and upgrade at the end of the year once the smoke clears on the new AMD and Intel offerings. Once AMD gets back in the game starting in September I think you will see prices start to move down, including the video cards too.