best harddrive for oced system revised

ok after some major input from the good people here i have revised my choices i need more input on what people think will be best for my oced quadcore system. im not looking for anymore fps i already get 100+ on most games and playable fps on every other game besides crysis on highest settings but another graphics card is in the near future anyway. my limit is $300 and storage is not my concern. I have found the 300gb raptor at $240 so it is within my price limit. i have a 250gb that still has almost 100gbs, so storage isn't my issues. i want my games to load up fast and basicly i dont want to have to wait for anything... ever... but to be reasonable i would like faster map and in general faster application load times. im looking for something stable enough so im not going to have to be redoing my drive/s all the time. i want to know if raid 2 tb's will be worth the hassle or if raid is more trouble than its worth. thanks for all the input last time guys i think this will be the final decision maker