Folks,
Thanks for all the feedback on this. In hindsight, my decision not to go around was not the right one; good points were made about safe go-arounds being integral to the design of circuit procedures. Having elected to land, I then underestimated the distance required to touch down and stop. I was full flaps but, as mentioned, high and fast.
There was another good point about responsibility - I'm PIC of my own aircraft, not of any others in the pattern. Anyways, no injuries apart from a little egg on my face, and the acft was back in service within hours. Will do better next time!
Cheers, Crep