I'm not expecting my wired, refurbished keyboard until next week. All else should be here by Saturday. I ordered a dongle wireless and am wondering, due to total unfamiliarity with "dongles", if this is what I need to power my existing magic keyboard which came with my iMac. Sorry to ask all these questions but I want to get a step ahead so that I can partially remember what the heck I need to be aware of. I think I will clean the HDD if possible but want to keep Snow Leopard until I get used to the Mac Pro again. One of the reasons I decided to do this is going to sound silly but I love the Myst games. Catalina won't play them, my Windows laptop is a pain to use for the horrible screen it has and Snow Leopard was what I had when I originally purchased all the Myst games for PC/Mac. Not sure if Lion will also run them? I am also doing a lot of writing now and am wondering if word processing software for that old a Mac is available. Hey, it's just a lot of fun for me and I'm getting old!