Scorpio in my new desktop, thoughts?

I was thinking about throwing a 500GB WD Scorpio Black in my new desktop build as a storage drive.

The main reason am thinking of picking this drive is because it's $40 cheaper than the 1TB Black, and i needed something with a legit warranty.

I might even add another one in a few months just to keep with the 2.5" theme (also going with a 128GB crucial M4 SSD)

Does this sound like a good idea?

Also, Since i haven't made my final purchase yet i wanted to know if i should invest in newegg's extended warranties. with my build adding 1yr to the key components adds about $80 to the build, is newegg's replacement policy worth it or should i stick with the manufacture's?


Link to the scorpio black
http://www.newegg.com/Product/Product.aspx?Item=N82E168...