I've mentioned this a few times but not posted so here it is. Currently OOS at Amazon I've had an order in for a few weeks and its due mid/late April. Not 100% sure this can be used with a Mac so fingers crossed. Free p+p obviously.
Cute demo http://www.wdc.com/en/flash/MyBookWorldDemo.asp
Add this unique remote-access storage system to your wired or wireless network and youll have a surprisingly simple and secure way to access and share data and photos, at home, in the office, and anywhere in the world--even when your local computer is off.
WD Anywhere Access - This storage system and all the files on it are always accessible when you need them, even when your local computer is turned off.
Easy to set up, easy to use - Network setup is a breeze with our unique, powerful remote access software.
Data OnHand - From any PC, use Windows Explorer to securely browse through folders on My Book World Edition. Open, edit and save files as though they are right there with you.
Gigabit Ethernet Connection - High-performance 1000/100/10 compatible Ethernet connection.
EMC® Retrospect® Express backup software - Easy-to-use software for scheduled or on-demand file backup.
UPnP enabled - Makes network configuration easy and convenient.
Capacity gauge - See at a glance how much space is available on your storage system.
Quiet and cool - An efficient convection cooling system and a thermostatically controlled fan keep this unit reliably cool and remarkably quiet.