I have a 24' x 30' garage with scissor trusses on 9' walls providing a 12' ceiling height at the peak. This means that I have a sloped ceiling that allowed me to install a 2 post lift. I also did not have the budget for quality lights and put in the Costco 4' "shop" lights when they were running a special, 2 for $20.
Interior is still non insulated and unfinished with open stud cavities, but I ran 3 circuits with a total of 6 ceiling outlets. One for each garage bay and one for the work area. 4 lights are daisy chained per outlet for a total of 24 lights at 9 foot high, with the one over the bench at 7 foot. All 3 sets of switches are 3 way (some 4 way) so that I can turn on the banks from different areas.
I am not a lighting expert, so I suggest reading the threads mentioned previously for general lighting layout recommendations, like don't run lights over the top of where vehicles are parked and you want to keep strip lights parallel to the wall, and you decide on your lighting budget.
I am happy with the level of lighting (bright no shadows) especially for a couple hundred dollars, plus I bought a few spares. I admit that fixtures on chains with power cords running between then are ugly, if that is a concern, but overall for a garage intended for automotive work, no complaints especially for the level of investment and DIY use.