I have discussed the removal and replacement of the housing and lamp in another thread but here is what I posted, I have also included the section on replacing a 'bare lamp' for completeness (I got an Osram replacement lamp shipped for US$88):
"To replace the housing is extremely easy. Unscrew one screw from the side of the projector to release the top cover, which then unclips. There is a clear plastic film shield over the opening to the lamp, I am told this is to keep out dust. Pull the plastic shield off using the tab. Take out one screw closest to the lense end and the housing pulls up via the handle. Put the new one in and push down to engage the electrical connection, replace the screw, replace the plastic shield, clip on the cover and replace the side screw .... done in less than 5 minutes!
Now with a 'bare lamp' replacement the additional steps are: With the housing out of the projector, unclip the two power leads noting the orientation of the lamp and which wire goes to which side (this may be unnecessary but a good precaution) you may want to label these. Next unscrew the holding screws around the lamp. There are a few of these around the perimeter. The 'bare lamp' should then simply slide out. Put the new replacement lamp back into the housing, noting the orientation so that the wires can be reclipped onto the lamp, i.e. the silver clips facing the same way as before. Put the retainers back and rescrew. Clip on the two power wires and the housing is ready to go back, follow the above steps to reinstall the housing."
So, it is a simple less than 5 minute job to remove and reseat the housing and less than 10 minutes to replace the lamp.Edited by OZReddog - 9/8/13 at 3:35pm