So I took my MBP into the apple store today and explained that my original hard drive was showing as failing after my two momentus xt drives were apparently failing as well. He said it was really strange and hooked up the drive to their external interface and low and behold there was no errors on the drive. He said it's most likely being caused by IO errors due to a bad SATA cable or possibly logic board. We had my MBP sent in for testing. So basically if you see SMART failing status it may not be the drive afterall. I was at the SOHO store in NYC and Jason helped me. He was awesome and very technically knowledgable.