They seem to be the right ones, its a very good idea to upgrade the hard drive yourself it is very easy and you can use the one that came with you laptop as an external hard drive.
My friend who uses a MacBook asked me to upgrade his hard drive, he called me from a mall so i told him to buy a 200GB 2.5 hard drive which he did and i installed it in 5 mins. It seems any 2.5 hard drive would work in a MacBook i have not read or found it otherwise. Its to bad that to upgrade a MacBooks Pro's hard drive takes a hour or more if you are extra careful. My Dell gaming laptop is even easier then a MacBook, you open the screw, slide open the trade (kinda like the MacPro), insert the new hard drive and your done.