I have had Freesat for about a year now. Don’t be fooled that you will get 200+ channels of exciting things to watch, a lot of them are a waste, shopping channels etc. However you do get the normal terrestial channels (and offshoots) and their HD output which are excellent, plus a few other channels. I presume more channels channels may be added in the future. Take the advice above about Humax PVRs, they always seem to get really good feedback. We have a Sagemcom Freeview box with hard drive, when it works it is good, however it doesn’t seem to want to work too often, wouldn’t buy another one.
Fitting a sat dish is not difficult at all, it is a basic DIY job, although you may have to stand on the top of a ladder with a drill for a bit. The above offer from Ton seems a really good deal.
If only Freesat would get Eurosport (happy to py extra for it), I’d ditch the expensive Sky subscription, although oH might be a little hacked off losing the movies!