Take my advice on one thing,
If you do decide to get OS 3.9, I reccomend that you have another bootable partition with OS 3.1 installed on it. Sometimes you run across stuff that doesn't like the newer OS. Having that older OS revision to fall back on can be handy at times. It's helped me run stuff from time to time. I also didn't put my Picasso96 drivers on it in case that messes some things up as well. But the Flicker-Fixer/Scan-Doubler on the PicassoIV doesn't require the P96 software to run.
