If you go the PC route, all you need then to make your Blu-ray drive multi-region - for both SD and
HD playback - is a piece of software like AnyDVD
HD:
SlySoft AnyDVD HD
OR
Blu-Ray DVD drives for PC are available from around £85. You need decent software and a fairly quick compatible system to handle the BR disks. There is an app available to check your system:
CyberLink Blu-ray Disc Support