Clean the 1060 case with either Windex or "purple" cleaners. Use a paper towel or soft terry cloth towel. I would strongly recommend AGAINST using a scouring pad or such. I've even heard of people using old toothbrushes.
You might look into a separate video card. Also hardcards are nice if you can find one. That way you've got a hard drive available on the DOS side of the house.
BTW, you do have MS-DOS and Janus software don't you? If not, the 1060 is just an oversized stand for the external drives and other desk detritus.
Curtis