Actually, i have a VAIO ' VPCF 121 FB ' laptop and the internal hdd broke 2 times with minor shocks so I dont really mind getting a mid performance hdd as long as it doesnt break again during transports...
the thing is that companies didnt describe the shock resistance in obvious terms (like that of falling from height X), they rather described it with [Hz] units (ex.:0.00459 g²/Hz (10 to 500 Hz))
I guess I'll just have to check out many HDD to compare vibration resistance....
Thank you