"Nice but comparatively expensive"3.5 starson by Pibley
Pros: Nicely equipped.
Cons: Relatively small hard drive size.
No Blu-Ray option.
You'll pay $200 more for an extra 2GB of RAM and a doubling of the hard-drive size.
Doesn't come with a keyboard or a mouse.
Summary: I comparison shopped the mac mini against the Intel Atom based PCs from Lenovo and Acer and found those to be lacking on HD video playback (too much stuttering video). I also compared the mini against offerings from Dell, HP, and Gateway. Those companies offer bigger boxed machines, generally with better configurations but I found that they ran hot and in some cases, had quality control complaints. I also found they were bigger in size than I wanted for my HTPC set up.
As a result, mac mini was about the only choice left for me. I'm not concerned too much about the OS that runs on the PC but OS X Snow Leopard seems to run well.
If you can afford this computer and can live with the configuration, the mac mini is a good buy. Just understand that it's basically a notebook computer in a little desktop box.