Good for you!! They finished pouring the slab for my 35x30' shop today... I'm taking lots of pics and will post my project once it's complete. My shop layout is similar to yours except reversed. Vehicle area on the left, everything else on the right.
I am going with 8' LED lights, 8 strips of two lights spaced evenly across the ceiling. All of my power outlets are going to be 15/20 amp sockets, in quad boxes, with each outlet on it's own breaker. A few 30amp sockets, locations yet to be determined, one 50 amp 120/240 twist lock just in case I need some serious power. The building mains are 125 amp.
I'm not putting in a bathroom, too much trouble plumbing the black water pipe back to the house and tieing it in. I am putting in a big double kitchen sink I picked up off the side of the road, and a simple shower, to drain into a buried 55-gallon drum behind the shop (French drain I think they call it).
Once the building is up, I'll post all the pics in a nice photo-documentary!