Comment Re:MythTV (Score 4, Informative) 516
Being a Slackware user for many years, I went the MythTV+Slackware route when I got my HTPC up and running. One day I managed to totally break my system and decided "What the hell, let's give MythBuntu a go". What used to be a 2 hour+ set up time went down to 10-15 minutes. I actually switched my server over to Ubuntu soon afterwards and haven't looked back.
MythTV and Ubuntu (and mediabuntu) marry well together on both the backend and frontend. It's worth an afternoon to try out if you have the hardware around. I used nfs instead of smfs to connect the two, but the principles the same. Plus I have additional "TV" sets all around the house with dual booting partition. Those took a little extra time to set up but it is a bonus.
Some of the new mini SSD based machines (Like the Acer Revo) might be the way to go for the frontend. They're powerful enough and can playback HD video. MythTV works great on my Asus EEE 901 running Ubuntu Netbook remix.