Guys, this is some great feedback.
The breaker box was replaced in August this year right before I took ownership. The electrician replaced the old 100 amp breaker with a 125 amp breaker. I wanted them to just provide an allowance so I could go with a 200 amp breaker but couldn't come to terms on it. So I am satisfied with the 125 amp breaker.
I have talked to someone from the company that did the work. At the time, I wasn't aware of the possibility of aluminum, we just talked about grounding or lack of. The person I spoke to suggested installing GFCI's on the first outlet of each circuit. If I don't have aluminum wiring, I will probably go this route this time, then replace wiring on the next upgrade. My only concern is the renter tripping GFCI's and calling every time - I guess it is easy enough to just tell them to reset.
I am handy enough to do the GFCI replacements - when I was a teenager, I volunteered on projects thru my religious organization in the electrical department. I've installed switches, receptacles, light fixtures, ran conduit, pulled wire. I never really got near the breaker panel on those projects. I've also installed several ceiling fans including one in the rent house and an led porch light.
I also like the idea of running the cables myself and letting the electrician connect to the breaker box. I am assuming that each room gets a run from the breaker box that splits to switch/light and receptacles that are in series, right? I should be able to talk with guy at the big box store for cable size and the like. Each room is pretty simple:
Living - 1 ceiling fan/light on common switch, 1 switch to porch light, 1 receptacle on each wall
Each of 3 bedrooms - 1 ceiling fan/light on common switch, 1 receptacle on 3 of 4 walls
Bathroom - 1 switch for vanity lights, 1 switch for exhaust fan/light (I am going to daisy chain an led light for more light in shower), 2 GFCI's
Hallway - 2 switches - one operates a light, the other used to operate an attic fan which is now removed
Kitchen - probably the most complicated 2 lights operated by single pole switches, currently 9 receptacles - 2 general purpose, 3 counter height, 1 for dishwasher, 1 for refrigerator, 1 for cooktop, 1 for oven. I will be going back with a range instead of cooktop/oven. A good point was made about no GFCI on refrigerator.
Garage - 3 switches -1 for garage, 1 for back yard flood light, 1 labeled as "goes to nothin", 1 GFCI that isn't working, 1 receptacle for washer dryer