I think this wiki which was setup by a geekzone member (forgot - sorry!!) should be referred to more often, and perhaps be updated more.
In general i think it would work best as the central go to for anyone who wants to get started with a HTPC. Theres so much knowledge on these forums, but i think it should all be put in one place. Also there should be links to it as stickys in this forum and the freeview forum.
Pretty much this is just a reminder if people get spare time to contribute.