I think the Pentium

[swoon]

I think the Pentium G620-based system Andrew suggested fits your requirements very well. I definitely agree that you should not build the system you originally posted. The SNB Pentium system has a lot of legs and will serve you well for a long time. If your needs grow down the line, you can throw in some very powerful processors, discrete GPUs, additional storage, etc. On its own, the G620 is more than capable of playing back virtually everything there is today in video and handling basic record/playback HTPC duties.