It seems there is quite a bit of stuff on trademe right now.
Nice condition Osborne I
http://www.trademe.co.nz/Computers/Vint ... 530778.htm
Another SEGA SC-3000H
http://www.trademe.co.nz/Computers/Vint ... 390266.htm
2 x BBC's
http://www.trademe.co.nz/Computers/Vint ... 797396.htm
http://www.trademe.co.nz/Computers/Vint ... 797775.htm
ZX Spectrum
http://www.trademe.co.nz/Computers/Vint ... 919387.htm
Very complete Amiga 2000 Setup
http://www.trademe.co.nz/Computers/Vint ... 514091.htm
Casio PB-100
http://www.trademe.co.nz/Computers/Vint ... 665464.htm