Cluster re-do (pics)
Another thing you can do when you have the cluster apart is to use Plast-x or some other plastic polishing compound on the clear "glass" windows. This will eliminate or minimize all the scratches caused by years of wiping the dust around with a cleaning rag. It helps remove cloudiness too.
P.S. I also did all my arm rest bases and interior plastic with Plast-x. They really brighten up and look much nicer.