Motherboard: The
Gigabyte GA-EG43M-S2H G43 has on board graphics; the Intel G43 chipset has the Intel GMA X4500 graphics processor supporting HD, DX10 and the board has HDMI out. This looks suitable for satellite HD decoding and connecting to an HDTV, methinks.
CPU: The motherboard support LGA775 socket, so it can support an Intel Core 2 Duo, and this E7300 2.66GHz will prove fast enough to record 4 programmes simultaneously, and burn a DVD, etc... (Might have to purchase a big but quiet cooling fan for this CPU.)
RAM: 2 lots of 2GB of memory is more than enough and cheap at £40...
Disk: Best to use dedicated PVR HDDs in this machine. Two of these 320Gb for 'buffering' and later and some slower - but 'greener' 1TB WD10EADS drives for normal 'archiving' and media storage...
Case: The
Antec Micro Fusion Remote 350 is good looking enough to sit under the TV next to other CE boxes, but it only has a 350W power supply, which might prove inadequate, when more tuners are added. Might need to consider an uglier case but more powerful supply... Update: it's been pointed out to me that the case only takes 1/2 height cards (see link for case details). This might cause an issue with what tuner, graphics, expansion cards we can get...
Tuner: The Pinnacle 7010iX PCTV Dual Satellite TV Tuner is a quad tuner (two DVB-S and two DVB-T) suitable for Freesat and Freeview decoding, and is cheap on eBay at the moment. But it is not DVB-S2, so if this is purchased, another tuner card might be needed for S2 decoding...
Remote: Who knows if the Cyberlink Infrared Media Centre Remote Control is any good and suitable for this purpose, but it is cheap!
DVD/Blu-ray: Yeah, need one of these! £20 or £75, or both. Might need to burn to disc, and playback of HD from Blu-ray might be nice :)