Personally I'm still finding 500 GB rather a lot. I had in the back of my mind the size of Hi Res files and that causing a capacity problem but they don't sound (hardly any) better than an upsampled CD to me. If you've got thousands of CDS, fair enough.

When my drive goes (all safely backed up) I will be politely enquiring whether it can be replaced by a 1 TB one. I expect the "official" answer to be no...

Meanwhile in terms of zones, I'm Airplaying ControlMac to wherever I want, via Airport Express, direct to a rather funky pair of Airplay speakers and using ControlMac on any spare laptop using optical out. I've got more zones than places to put them, without buying anymore M gear (I'd love an MS200 linked to a pair of 3200s and a DSW please Santa).