Guide for installing a second hard drive?

so want install second ssd in 2010 15" macbook pro since need more storage/want os faster. haven't been able find guide on how this. know of guide? thanks!

also, have of done this? thoughts/opinions?

 

http://eshop.macsales.com/installvideos/macbookpro_15_unibody_mid10_dd/

 

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