Tools you may need to complete the job...
(note this is not given as an exhaustive list, but for reference only)
You will need to have tools to cut extruded aluminum and steel. The mainframes are 2"x2" and 1"x2" while any beams will range in size from 
3"x3" to 3"x10". In all cases finished lengths are cut on site by the
customer. A 10" carbide tipped blade on a radial arm saw and/or a shop saw, will give you the best results. You may purchase these at your local home improvement center or perhaps even rent one.
You will need to have a drill (cordless is more handy) with magnetic hex head bits to make it easy to use the metal screws supplied with your kit.
Most other items you will need are standard... step ladders, screw drivers, pliers, tape measure, level, carpenters square, caulking gun, pencil, box cutter, chalk line and at least two pairs of hands! Since you are working with metal we suggest you wear protective gloves and eyewear.
For the pan system patio covers, the "W" pans and flat pans often run in a configuration where the final pan will need to be "ripped" to fit the last section. We suggest a pair of electric shears which can be purchased at your local home improvement center or perhaps even rented.