So I bought my external enclosure a few years back and it's internal is IDE/ATA, I didn't read about this stuff when I bought it, I thought they were all the same. I currently have a 320GB HD in there and was thinkin of upgrading, and realized there was only one ATA drive on Newegg that has a capacity of 750GB. So should I just try to sell me External? and either get a new external with a SATA interface? This is just for backing up stuff. I was also thinking about TC. What do you guys think?