What size do I need the pagefile to be?

[Energize]

After installing a new SSD drive with Windows 7 on it the pagefile is 12GB which seems vastly excessive and is simply unacceptable on a 120GB drive. What can I safely reduce this to?

 

[Energize]

Ok I've set it to 1-4GB atm. 4GB is assigned as a ramdisk so no pagefile is required for it anyway, that leaves 8GB which would rarely be used.

 

[Energize]

I don't mean putting the pagefile on a ramdisk I mean assigning some of the memory as a ramdisk because 12GB is never going to be used, programs load so much faster off a ramdisk than an ssd it's unreal.