I run a 15m Extra Long Lindy DVI-D cable between Sky/DVD and PJ. I know a few others use this cable on here also. Approx £50
Just put an HDMI/DVI adapter (also from Lindy) at the end you need hdmi
Never had a hint of signal loss. sparklies etc.
Its a very heavy duty cable and an absolute bitch to get around corners inside conduit tho
www.lindy.co.uk
Personally Im going to go component from SKY HD to PJ when it arrives next month. At least until theyve ironed out the HDCP issues. Also component should have less probs at those lengths