Which of these two Hard drives would be better?

[Blitz24]

http://www.amazon.com/Scorpio-Black-Cache-Mobile-WD5000BPKT/dp/B004LR1RPK/ref=pd_cp_e_0

http://www.amazon.com/Western-Digital-Scorpio-Cache-Notebook/dp/B0037NYQ6Q/ref=pd_sim_e_3

Would the 7200 RPM speed be worth the extra $6 for my 80 GB Fat BC PS3?

 

[Slash]

Should make a slight difference but not much.

 

[Blitz24]

I found an article which used GT5 as a benchmark in comparison tests.
http://www.eurogamer.net/articles/digitalfoundry-ps3-hard-drive-upgrade-guide

 

[Blitz24]

Got the 5400 RPM.

Backing up data to a 320 GB external. How long should it take if its approximately 70 GB?