I do not have any PCI-E slots (both used) but I have 2 spare PCI slots. I have been trying to find PCI dual tuner cards preferably that support hardware H.264 decode, however nothing is available any more.
There are plenty of USB single tuners, however I am thinking these will rely heavily on my processor and thats not great if your trying to record 4 channels and possibly watch recordings at the same time.
It seems the old cards have dropped out of the market with no replacements, and not availiable on trademe either
I have seen a suggestion of a network tuner box but this is a little pricey and was only on a Australian site so I have not investigated this option much yet.
Any suggestions at this stage to get 2 extra HD DVB-T tuners at a reasonable price AND are available to NZ buyers would be a real help.