sudo apt-get install linux-backports-modules-intrepid
Since I also liked the radeonhd, works great with the HP docking station. I also installed it.
apt-get install xserver-xorg-video-radeonhd
Aside from that everything is still alright. I also noticed that suspend and resume works faster. The harddisk aggressive power management seems to have been taken cared of with Intrepid. I will be observing the load cycle times for the next few days.