up to you sweetie. i personally prefer an external because you just plug it in and viola! however, they are pricer than the internal. i use my external especially when i go to my sister's house to bring her new movies and so fourth. great for backups. ^_^
not much in differences they work the same. storage space lol. if this is your first one, and you lean towards an internal make sure you have someone set it up for you. i hate worse case is to open up your computer and maybe fry it by shocking it and don't forget to set this new one as a slave.
this is sad myself..i have two internals that are 160gb and two externals that are 320gbs
h34r: