External Hard drive

Hey there, kenshin1!

To give more details to what xlent gmr suggested as external HDD options.
I can suggest to take a look at WD My Passport Ultra and WD Elements.
Both portable drives have pretty fast transfer rates due to the USB 3.0 connection and a capacity variety from 500GB up to 2 TB
WD My Passport comes with specific features installed on it like the backup software SmartWare Pro and the security utility, including a password protection and incorporating a hardware encryption that would keep your data private and safe. Check the link for more details about WD My Passport Ultra: http://www.wdc.com/en/products/products.aspx?id=1000

WD Elements comes without those utilities, though you have the option to install them.
Here you can see more about this one as well: http://www.wdc.com/en/products/products.aspx?id=470

Hope this was helpful! :)
SuperSoph_WD