[Vicegrip]

I do a lot of lighting work and by far the best bang for the $ is 8 foot dual HO florescent. HO is High Output. It is a common commercial light inexpensive for both the fixtures and bulbs and make a lot of light per foot of bulb. Far more then the florescence you get at Home Depot I have a 24 X 30 with 11 foot ceilings am using 5 2 tube 8 footers and there is plenty of light even with unpainted wood walls. after the drywall goes in I plan to add one more dual 8 to the far side of the lift to fill in when A car is up on the lift. You can get HO fixtures and bulbs at Rexal/Branch electric. A dual 8 footer is $44.

I work with HID every day and would not ever have them in a residential setting. Good quality HID systems cost $$$, make tons of heat, most will buzz enough to drive you nuts, are single point lights and thus cast more shadows in a down light setup. They also put out paint and plastic damaging UV rays. They take time to come on from cold and take 10 min + to come on if turned of and then on again as they have to cool before a restart will commence. You can get inexpensive HID from Home Depot but they buzz like a bee hive and go through $ bulbs.

The good points to HID are when you use the $$$ color corrected bulbs you get good output of light that is nice and white and close to sunlight in spectrum.

You can also get Very High Output florescent (VHO) but the $$ factor goes up and the lumen density is not really required in a shop setting.

I have a 90 amp sub to the the Taj. Have many 220 v power tools 22v compressor a lift and do welding and elctro cutting. 90A seems to be plenty as in a personal shop you don't use all the different power loads at the same time. I will be adding AC this year and have just enough left for it.

Dave is right FFC is tight about carports that evolve into garages.