Fastest hard drive for around 5-60 quid

[ocukcustomer]

Hitachi Deskstar T7K250 NCQ 250GB SATA-II 8MB Cache - OEM (0A31636) (HD-002-HI)

What do you think? been going through reviews and this looks like great bang for buck. Is it worth it? what about raid 0?

 

[ocukcustomer]

Sounds like the hitachi is the bad boy to get for big storage and speed for little money.

If I get 2 in raid0 will it be faster than the raptor?