I would go the route of a RAMdisk because of the following reasons:
#1 Extremely fast. They can go 5,000MB/s - 10,000MB/s and even above
#2 Great way to use extra ram if you have it
#3 If you're a gamer, that high speed is going to benefit a) Load times, b) Stop fps/lag due to hard drive speeds sucking, c) Overall smoother, more fun gaming
If you want to learn more about what a Ramdrive is, check out
http://Dimmdrive.com as it has some really good information, videos, and is a very featurful ramdisk software.