First i'd like to say thanks for replying and being so friendly and helpful. Most Forums I post on it seems that everyone has a grudge against you for no reason. Anyways...
Yes all the drives i'm trying are SATA, I have so far only tried 3 drives which i have available to me. One is a seagate momentus 5400.3 a laptop hard drive, the one that works. The other 2 are Maxtor Diamondmax Plus 9 120GB hard drives, the ones that don't work.
Now the make of the enclosure, and probably my first mistake, It was a cheap chinese made one off ebay. I've contacted the seller in hopes of more information on the make.