Here's my basement. As you can tell, I like lights. Threw a bunch of fluorescent ballasts down there to brighten up my work area. The work bench is REALLY high. But then again, I'm 6'4, so I want something more my height to work on. I believe the top is 44"-46" from the floor.
The shelving along the wall is nice as well. Each gap is 20" high. 31" deep and 16 feet long. When I first moved in, the water heater (behind the white hose on the far left of the picture) was next to the steps. When I designed the shelves, I moved it under the steps to consolidate space and make the most of my shelves.
And lastly, I put down flooring in my attic. (and lights... don't forget the lights) At first there were just 2x4's joists up there with lots of insulation. I attached 2x10x12's up there to both the 2x4 joists as well as the 2x4 struts. Once that was down, I was able to lay down the 3/4" plywood flooring. I'm happy with the result. Oh, I also installed the attic steps. Previously there was only a 24"x24" port hole in one of our closets. This new design is much nicer and gives us even more storage. This is when I first put the floor down. The bathroom vents are now run to the outside of the house instead of just the attic the way they were when we first purchased the property.