Take it from me a former notebook repair specialist repairs involved Toshiba, Compaq/HP, IBM, NEC, Acer notebooks..
The Fujitsu notebook hard drives are pretty damned good.. I rate them higher than IBM/Hitachi, and Toshiba drives.

We had the worst failure rates with the IBM travelstars (since Hitachi took over they are getting better), then came the Toshiba’s. We use only Fujitsu for capacity upgrades and out of warranty drive replacements.
The Fujitsu drives are the quietest and coolest in operation and the Toshiba's are the loudest.