I have a 2009 13" MBP with a 1TB HDD and it fit pretty well
Sadly my MBP is at the Apple Store right now because they're changing it's battery. I'll let you know what brand it was. Although I'm pretty sure it was WD
The 1TB drive has to go in the optical bay with a data doubler, but yes it will fit. 1TB laptop drives are a few mm thicker than normal laptop drives, so it won't fit in the normal space.