Hmm... I don't know anything about the Targa model itself, but you may want to make sure that it's only a HD CADDY it's missing, and not a machine that will only use a HD in a proprietary cartridge. I've seen several laptops in which if you lose or break that cartridge, you're stuck. (There's a proprietary connector inside the computer, and good luck ever finding something to fit it!) I have no idea if that is the case here. It's actually pretty rare to see a machine like that, but you might want to research it.