I skimmed through the threads so forgive me if I'm repeating something.
My shop is in my unfinished basement and is also a gym, workshop and ski tuning storage.
Lighting - I go these in my basement
https://smile.amazon.com/gp/product/B012ENR1IE/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
they are fantastic. You can daisy chain them and can connect to existing ceiling fixtures by installing a socket to plug adapter. At night, you can see my basement from space. I'm also a believer in task lighting but that probably has more to do with me being in my late 50s.
Wax management - Plan this into the layout. The hot wax drippings and the scrapings. I have the kitchen counters we replaced a couple years back. They work great because Formica is easy to clean and when the dripped wax becomes to much, a scraper takes it off quickly. You'll also want a way to sweep/brush the wax shavings into the trash easily. When I'm hot scraping I just put the trash can at the tail of the ski and anything that goes onto the bench is swept in. I remember reading a post on epic about someone making a bench with a whole in the center and a can underneath.
Electrical - Depending on what you need the power for, this doesn't need to be elaborate. A power strip is usually plenty. Some like them on the bench, over the bench or under the bench. It's a preference more than anything. Mine is on the bench but I run the cord of the iron overhead because I don't want the cord dragging along the ski edge. You don't usually have to have too many things plugged in at once. Along with the iron, I have battery chargers and task lights. Depending on your intestinal fortitude will depend on how far the beer fridge is from you. Fortunately for me, I like Stouts and Porters and room temperature works great.
Music/TV - I prefer to just listen to music over watching TV (too distracting). Every now and again I want to try something that requires me to watch a youtube video and I just use my iPad for that. If the music isn't close to you, at least have a remote control close by. This way when my wife calls down to me, I can turn it down instead of yelling "What?" a couple times and pissing her off.
Ski Storage - You don't want it too far away so you can glance at them and know what you have to so. I bought ladder hangers from HD and with the (set of two) hanging from the ceiling I can get 4 pairs of skis easily stored on one set. If you put them on their side you might be able to get more. Since I'm normal size (5'7"), this works well but if you're a mutant, this might not work for you.
Work in Process Storage - You'll also want a safe location for the skis you just put wax on. I use the same set up as ski storage but know that when they have been waxed and are curing, you can't get as many. I also have an adjustable shelf bracket mounted with 14" shelf holders that I use for over flow. Do not store these over your work area of you'll find out how hot the wax actually is.
Tool Storage - However much area you think you need, triple it. I'm a bit of a tool gear whore and have tools that I've never used but have them just in case. I by when there is a good deal instead of when there is a dire need. Files, stones, brushes, roto brushes, side edge guides, base edge guide, sidewall planers etc. You want your go to tools handy (within your reach) and the rest close by but organized. Preferable without opening a drawer or cabinet.
Wax - Same as the tools. I have a bin for different types; base prep, general, race, etc. I think I have 4 or 5 bins and most have two different types in them (new and old - I use Dominator). I also keep some cheap stuff off to the side for people that ask me to tune their skis that don't really care about it so much. I do the same with some of my tools as well. I'm not going to use an expensive file on your rusty skis even if you are my son-in-law. Love hurts.
I've also found that by tuning friends skis here and there, keeps my wife from figuring out I bought new skis
Have fun,
Ken