So I have an internal hard drive, but no computer with a tower to hook it up to to move the files onto an external hard drive. Is there something I can do to move these files onto my laptop, which is a MacBook Pro.
You literally turn the internal HD into an external that you can use on any PC/MAC by getting the above mentioned sata to USB or a complete 'HD enclosure' which consists of the adapter plus a friendly HD casing.
Ebay or Newegg would be the place to go. I guess you need to make sure your USB adapter is recognized by MacOSX as such. Not sure if all are.