You can receive nearly all the free channels on satellite with any digital satellite receiver or PCI card. We have four receivers in the house, and one Sky subscription. Only C4 and C5 need a Sky receiver and viewing card, they will come out of an encryption contract in 2008 and will almost certainly broadcast free-to-air. BBC HD is free-to-air and I imagine will stay unencrypted if/when it is a permanent channel, so you could use any generic DVB-S2 PCI card. I hope that the other channels launch satellite HD channels soon, there is very little on BBC HD at the moment!