Yes. Both are easy.
http://eshop.macsales.com/installvideos/
here are some better deals:
$64.99 HITACHI Travelstar 7K320 320GB Hard Drive $64.99 w/code Free Shipping
Newegg newsletter subscribers can use promo code "EMCYPYR24" to get a 320GB Hitachi Travelstar (0A57547) 2.5" SATA Hard Drive for $64.99 with free shipping on this bulk pack drive. The Travelstar runs at 7200 RPM, has a 16MB cache buffer, and carries a 3-year warranty.
Date: 3/5/2010 6:14 AM
$89.99 Seagate Momentus 500GB 7200.4 SATA Notebook Drive $89.99 w/code Free Shipping
Newegg has the 500GB Seagate Momentus 7200.4 for $89.99 when you use promo code "EMCYPYR25" with free shipping included. This 2.5" SATA drive will add high performance to your notebook while it fills your need for speed with it's 7200RPM spin speed and 16MB cache.
Date: 3/5/2010 6:14 AM
IF you REALLY want to give your wifes blackbook a big boost, drop in a SSD drive. If you wife is like mine, shes got little or nothing on it -- just some music, a few photos and not much else
spending $100 on a 64 gig SSD will make it fly,