Quote johnny h:
Get a large fast SSD which you can put the operating system and all your samples on. They are so quick that multiple drives are not necessary at all. Its really shocking how slow a PC feels on a hard drive when you have got used to a SSD. I'd really recommend them to anyone.
Ah that's interesting... If there's really nothing to be gained from putting samples onto a separate drive that makes me rather happy as I will save some pennies!