Seagate Black Armoro Ps 110 USB

While on ZDNET website I came across the Seagate Black Armoro Ps 110 USB, it says this has fast speed and a high capacity and they gave it a 4 star rating. It is portable and compabitable with USB 2.0, the price is BOUT $180 but it doesn't have firewire and the included backup software only works with PCs so tell me do you think this is really worth the money??? Check it out at: http://review.zdnet.com/product/hard-drives/seagate-blackarmor-ps-110-usb-30/33970175http://review.zdnet.com/product/hard-drives/seagate-blackarmor-ps-110-usb-30/33970175