DuffHomer
CAGiversary!
worth the extra imo, since it's compatible with PS3 and load times will increase since it's a 7200RPM
http://www.amazon.com/Scorpio-Black-Cache-Mobile-WD5000BPKT/dp/B004LR1RPK/ref=cm_cr_pr_product_top
Also if you got no idea how to upgrade your PS3 HDD, check out this guide
http://www.eurogamer.net/articles/digitalfoundry-ps3-hard-drive-upgrade-guide
http://www.amazon.com/Scorpio-Black-Cache-Mobile-WD5000BPKT/dp/B004LR1RPK/ref=cm_cr_pr_product_top
Also if you got no idea how to upgrade your PS3 HDD, check out this guide
http://www.eurogamer.net/articles/digitalfoundry-ps3-hard-drive-upgrade-guide