I have an old Macbook I use as my media server, but its seen better days. Obviously an HTPC or something new would fix most of my issues. But money is tight. I currently have PLEX running on my ATV and Plex Server running on my server and it works ok, but it buffers and exhausts my computing power on some larger files. My issue is decode/transcoding MKV files which are most of my movies/tv shows. FFMPEG eats up %150 of my processor and then it craps out and buffers. Here are my questions: 1) Is there a better way/easier way to change my files from MKV to something else. I mean i have near 1000 files about 1.5 TB of MKV movies and tv shows. MP4 is an option obviously, but I don't know how to easily do a convert. 2) Is PLEX the best tool? I know XMBC and other ATV tools are available, but Plex did work ok for a while. Do any of the other plug-ins tax the processor less? 3)What size processor and RAM would i need at minimum if I make HTPC for converting/streaming my files? Probably have more questions, but those are the big 3 right now. Thanks.