I just bought one from http://www.pinnaclesys.com/PublicSite/uk/Products/Consumer+Products/PCTV+Tuners/PCTV+Digital+PVR+%28DVB-S_DVB-T%29/PCTVnanoStick.htm for a NZ$100. On the site it quotes 15-30days delivery. It came in 5 which was very surprising.
This usb tuner works quite well with channels 3, C4 and looks superb on Freeview HD sample channel. All the rest of the channels dispay but there is no sound with the included "Pinnacle TVCenter Pro" application. I think this is because of the use of LATM AAC on the TVNZ channels. EPG works fine too.
Im in the process of getting DVBViewer so i can get sound while pinnacle goes about updating their software(hope sooner than later).
nb. For anyone getting this tuner: before you scan for channels, set the country to united kingdom not NZ in the wizard.
With the use of DVBViewer all channels work great with sound.