Which drive is best for workstation Raid 1 array?

[hkypuk6]

I have an HP XW4300 workstation (Windows XPsp3) that is used for Audio Editing.  This computer is used constantly from 7am to 6pm m-f and usually remains turned on when not used.  I have the operating system & programs on one non-raid drive and have the audio on 2x 2TB drives setup in a Raid 1 (mirror) array.

In the above configuration what would be the best and least expensive WD drives to use for the Raid 1 array?  WD Green, WD Red?  or other?

Thanks

[Hammey]

Hi well the green drive are not meant for raid so the Red would be the best choice as that is what there are designed for.