Apple Mac Mini (2.0GHz Intel Core 2 Duo, 120GB, Winter 2009)

Pros: Small form factor.
Well engineered.
Energy efficient.
Has all the standard features you could want in a basic desktop computer.
OS X runs very efficiently on this computer.
Great as a home theater PC.
5.1 audio output.
Apple online store.

Cons: Price is about $100 more than it should be for the features.
Needs a minimum of 2GB of ram to take full advantage of architecture.
Needs a bigger hard drive if you require video editing.
No blu-ray drive.
No HDMI jack.
Apple retail stores.

Summary: Yes it is more expensive than comparable PCs. What you get for it is a very user friendly, complete computer solution backed by a company with a solid customer service reputation.