There are some limitation with Fat32 that may preclude usage. ie max file size is 1 byte less than 4 gigs. So if you intend to place a 4gig, or larger file size - OPPS, no workee.
Other lmitations: http://support.microsoft.com/kb/314463
Interms of speed: a Ramdrive is approx 10 times faster than a SSD. NOTE it will slow down start-up and shutdown times as the Ramdisk contents will be read into memory form hard drive (SSD or HDD) and writen to the hard drive on shutdown.
thanks for thee replies guys! i really appreciate it! And by 4gig size for the fat32 limitation. Are we talking about 1 file that is 4 gigs or bigger wont work? Or are we talking if i put a folder in there that is 8 gigs. ( that has a bunch of smaller files in there)