Shuttle launches Pentium M lunch box
 

SHUTTLE has introduced a barebone small PC which supports Intel Pentium M and Celeron M processors.
The XPC SD11G5 is optimised for low noise, Intel said. The system is powered by a 220W power supply and uses heatpipes to keep the components cool.

It claims that the system produces less than 24dB of noise. The box costs €416 excluding VAT

http://www.theinquirer.net/?article=26845

It would probably make a great HTPC.
Low noise, low power consumption, high performance, relatively low price tag.