I have made some measurements of the R value for some coatings we are interested in. The plots have statistical error bars from repeated measurements, but I would suspect that these do not dominate the noise, and would guess these should be trusted to plus or minus 5% or so. They still should give some indication of how useful these coatings will be for the green light. I plan to measure for the ITM as soon as possible, but with the venting and finals this may not be until late this week.
EDIT (12/9/09): I fixed the label on the y axis of the plots, and changed them to png format.