I change all my own tires. I just use a tire wedge and a big hammer to break the beads. I use one 24 in spoon iron and one 14in flat iron.
I just changed the tires on my jeep today, winter tires to summer tires. Took me 1 hour to change all 4 tires and computer balance them.
The money I saved by buying my tires and doing the mounting paid for the computer balancer.