if i was to add a second hdd w/o using a raid configuration would i see a difference in speed? the reason i ask this is because right now i have an 80gig hdd which ive used 3/4 of and ive noticed that it takes much longer to search for and open files. i was thinking i could get an extra 40 gig to install my os on and use the other for all my games, movies, music, etc. any advice would be greatly appreciated, thanks.