"Freeview Playback" compatability (a host of standardised requirements for PVRs including series record and split programme recording)
Twin tuners
A decent EPG (The humax one is the only one I know which continues to play the viewing channel (in a PiP style window) while you browse the EPG. Don't understimate how useful that is!
You really can't go wrong with the Humax even though it's a smidge over budget.
Agreed! I have the earlier PVR-8000T and it's been almost faultless for 3.5 years now. Have had to re-boot after power failures etc. is all and have never filled the 40GB HD