Ok, so I'm doing some research to try to determine which way to go for my HTPC: new mac mini or windows HTPC (the one I showed on the first page). All your comments are very helpful.
Will the performance of the mini as a media center improved under windows 7 via bootcamp? I mean, if I use windows media center, I'll have better HD codec support, more updates to video players, better HD performance, etc. Am I right?
The 320 has hardware acceleration, so if even Plex does not fully support it right now, I might use windows media center which does fully support it, i guess... Does anyone know? Then I'll wait to the new Plex is released and that way almost any HD video will play good, right?
So, reading everyones comments, what I see is that the mini wont play 30GB HD videos very smoothly, or not at all. HD videos which are smaller than, lets say 10GB, do play nice. I dont really plan on ripping or downloading such big files as 30GB, but I do have some HD movies and videos which are 4GB more or less. This one play good under my imac, but when playing them on Plex the image was not that good, with pixels very big on the playback. Then I tried XMBC and it played perfectly.
Is there some setting I need to do on Plex to play HD better?