My Notebook currently has a 4200 RPM ATA 100 2.5" 100GB Hard Drive. I need to go 7200 RPM (not worried about battery life). I see there are ATA 150 and ATA-6 drives out there that fit my needs. I assume the ATA 150 will work. However, will the ATA-6? Never heard of it and I will have to buy this online and don't want to have to return something that does not work. Secondly, I am going to put this old drive in a 2.5" enclosure. I see there are a ton of brands now. What is a good brand to stick with? Thanks for any help.