Been there, done that. I just tossed my Media Case in the scrap pile. My project started out with a lot of good parts that turned into a mess. You do not want a media case unless you are prepared to deal with heat and noise. Heat and noise are the biggest problem in building an HTPC. Right off I can tell you that you will have to make a trade-off between form and function. My Meda Case was a big one, and still it had little fans that made lots of noise, yet it was not enough cooling for my three SATA drives, and big ATI Radeon X700pro video card, never mind the two tuners, and 3 GHZ P4. The heat was far too much, and the noise only grew as I added a fan over the top of the hard drives to cool them down. Then one of the small fans died, it was very hard to find a replacement due to the size. I put the entire mess under the bed and left it for a year.
Last week I bought a Rosewell case from Newegg for $50. It has two standard 120mm fans and is tool-less. I added my original motherboard (Gigabyte), ATI x700pro video, and all the original software on the original 200 GB SATA C: drive. The software consists of the latest versions of BeyondTV (next best thing to Tivo in function) and Beyond Media (Very Nice frontend).
I revamped the tuner section and bought an HVR-1600 with QAM support. This card is a hybrid, so it will only take digital on one port. That was OK, I use the S-video input for my Viewsat Ultra (Using UIRT control), and the other for HD off of Antenna (23 channels in FL). I pulled the other tuner (ATI HDTV Wonder) and went with a Duel tuner HDHomeRun (HD with QAM). This move was my best, as it was outside the case and provided zero extra heat to the case. I now have three HD and one S-video tuners. I have to keep all processing to late hours, no SmartSkip, or squeeze until after midnight. One thing I had to due to not impact my network with the HDHomeRun, was to put it close and use a small 4 port 100MB switch. This kept the video traffic off of the lan.
I reduced the three SATA drives to two, but instead of two 200 GB drives, I used one original 200 GB drive and bought a 500 GB SATA drive as the second. I turned the 500 GB drive into one 100GB Music drive, and one 400 GB for Video.
I have not tested all possible combinations of use, such as recording on all tuners and playing music, or watching a recorded show, but that will come in time. I have recorded on three of the four tuners at one time. The heat is not a problem, but the noise was a minor one. I am working on getting the system to sleep during down time, and I have a plan to move it to the other side of the wall where I won't hear it at all. I hope this experience helps someone who is on the verge of spending money on their first HTPC project. Joe