VelociRaptor, SSD, and Normal HDD. Is the extra money really worth the speed?

I am getting ready for Windows 7(yes, I am excited) and I’m getting rid of my old 80GB drive from 2005. I can decide what drive to buy to install my new OS on. I have a 1TB Western Digital in my computer for extra storage all ready. I would like speed, but I’m not sure if the speed is worth the money. I don’t want to spend above $250, so with that in mind I could get a SSD for about $240(80GB), a VelociRaptor for about $200(300GB), or just a normal HDD for about $80ish(1TB).

Do you think the speed is worth the extra money, or if any of you guys and gals have one of the faster drives, could you please give me some input on it?