Will this hardrive work if i replcace mine in my ps3?

May be...

http://www.target.com/Western-Digital-Sc...

yes, that will work (and its on sale too!!)

Yes, it'll work just fine. Brand does not matter. The important thing is that it's a 2.5" drive (anything larger wouldn't fit in the drive bay ... too big) and that it has a SATA interface so it will plug into the PS3. Personally I would go with the 250gig drive.

yes yes yes