I have built a Home Theatre PC (HTPC) using MythTV, originally running on Fedora Core 1 / MythTH 0.16, then Fedora Core 6 / MythTV 0.20 and curently Suse 10.2 / MythTV 0.20. I used the HT-400 case from http://www.hometheatrepc.com.au/ which uses a USB iMon remote control and a HD44780 compatible Vacuum Fluorescent Display (VFD).
I also have MythTV frontend running on an Apple iBook (portable wireless TV), an Apple iMac and on an X-Box.
I can be contacted at:
richardnhulme [at] AOL [dot] com