Need new drives for my server

I have a micro server on an imbedded VIA ITX board ,with a pair of the old WD green drives in mdraid 1. The old VIA chipset supports SATA1 only, so no need for speedy drives. I am down to one, and the warranty is gone.
I looked at the current deals. I can get:
WD RE4 for 100 each
http://www.newegg.com/Product/Produc...82E16822136533

Go cheap with Hitachi @ 60
http://www.newegg.com/Product/Produc...82E16822145304


Or go with a pair of lappy drives for low power use. The box is very frugal with the juice, and the lappy drives do have some merit for that. 80 bucks.
http://www.newegg.com/Product/Produc...82E16822136927

EDIT:
Laptop drives sold out. I'm going with the hitachi drives.