Hi Folks
We'll I'm feeling dead chuffed at the moment as I have finally assembled my HTPC and it works. At least I've managed to install an operating system and do some very basic stuff, but all the playing around to get it to be an HTPC is still a little way away. I'll post back with an update on that in due course.
But I think the hardware stuff is all done (of course I could find out I'm totally wrong about that when I try to configure it for HTPC functionality

), so here's what I've done so far.
My requirements were to have a PC that would look good in my living room, be very quiet, and allow me to watch DVD movies in surround sound, record programs from the TV, pause and rewind live TV, play music, and let me look at photos. I'm not going to watch any Blu-Ray movies for the time being, but I also want it to be HD-ready so that if I want to watch them at some stage in the future it would simply be a matter of swapping the DVD drive for a Blu-Ray one. I'll be running Linux, and at the moment watching Blu-Ray under Linux is a total pain. According to Sony, it's also illegal (although it really beats my why they think it's good for business to tell me not to buy their disks).
Anyway, here is the hardware spec I eventually came up with:
Case: Silverstone Grandia GD02 MT (silver)
Motherboard: Gigabyte GA-M78SM-S2H
Power supply: Corsair 450W VX Series
HDD: WD10EACS 1000GB x 2
DVD drive: Samsung SN-S083A Notebook 8x DVD±RW
RAM: OCZ Reaper HPC Edition Dual Channel - memory - 4 GB DDR2 1066
Keyboard: Keysonic 2.4Ghz Wireless Compact Keyboard with Integrated TouchPad
TV tuner: Hauppauge WinTV-NOVA-T-500
Speakers: Logitech Z-5500
CPU: AMD Phenom X4 9350e
Memory card reader: Ebuyer Extra Value ALL in 1 Internal Card Reader Silver
CPU cooler: Silverstone NT01-E Fanless Heatpipe Cooler
Note that there is no graphics card or sound card: the motherboard has fairly high-spec graphics and sound on board. I guess I'll find out soon if they are good enough.
I ran into a couple of problems on the way. Raffles has already posted about them, but they're worth repeating. I originally bought a different PSU, and it didn't fit. Although the literature for the case boasts that it can take a full size ATX PSU, that's not entirely true. If it's more than about 140 mm deep, there isn't enough space between the PSU and the HDDs to plug the necessary cables in. The Corsair one is only 140 mm deep and it fits, but some PSUs are bigger than this.
I also missed the fact that it needs a slimline optical drive (ie one designed for laptops). I'm sure it's made clear somewhere in the documentation for the case, but somehow I managed to miss it the first time round. Anyway, the drive above fits. However, there is no flap to cover it, and the front of the drive is black, which looks rather ugly in the middle of the nice silver case. It might be an argument for buying the black version of the case, as I failed to find a slimline optical drive with a silver front.
You also need to be careful with the CPU cooler. The Silverstone one is designed specifically for use in this case, and fits nicely. It's also fanless, which is a bonus if you're trying to keep the noise down.
Annoyingly, there are also some cables you need which are not included with any of the bits. The case only has 2 SATA cables, so with 2 HDDs and a SATA DVD drive, you need another one. You also need to buy a cable for the DVD drive, as it's not included with it (Samsung, if you're reading this, WTF not???). That was a bit of a pain, as they're not all that easy to find. The only place in the UK I found selling them at all was this one:
http://www.span.com/catalog/product_inf ... s_id=22745. Take careful note that slimline optical drives have different power connectors from the standard ones. I also had to buy and HDMI cable to connect up to my TV.
Anyway, after 4 weekends of playing with bits of computers, I now have a nice shiny new computer. I have managed to install Ubuntu 8.10 on it, and will no doubt spend the next few weekends trying to get the software to work. I'll be installing MythTV for the HTPC functionality.
This wasn't a cheap system, as I have mostly gone for quite high-spec kit. Total cost about £1200. If you want something similar for less money, an obvious place to save money would be the case: my one has a snazzy little touchscreen display on the front. If you are prepared to do without that, there's an alternative version of the case without it which is £200 cheaper.
It's reasonably quiet, although to be honest not quite as quiet as I'd hoped it would be. I may think about replacing the case fans with some quieter ones in due course if the noise turns out to be a problem.
I'll post back with some updates once I've got the software working.
NM