MacBook Pro Users: Have you upgraded your HD to a terabyte?

Or know anyone who has upgraded to a terabyte of HD memory? I’m considering the upgrade at the moment but I’d like to know others experiences with brands, reliability and what have you. I’ve only ever used SeaGate as my upgrade, mainly because it wasn’t as cheap as Western Digital and it wasn’t as expensive as Lacie. I own a Lacie back up HD and it’s sturdy and reliable.