so as i was moving my stuff around i found an external 2tb hdd i bought a few months ago then lost. (dont ask me how i lost it). then got the bright idea to take it apart which revealed a 2tb WD green hdd. so i slapped it into my computer just now and re formated it. its working fine but id like to set it up in a raid but im not sure if i can since my other hard drive is a 1tb seagate barricuda, could some one fill me in if i can raid 2 different models of 2 different capacities? and if i can which raid would be the best? 0, 1, 3 etc..