1996 Toyota Corolla BELTS

My Toyota's belts squeal when I first start the engine. Lately, I've noticed it lasts longer then usual. After work one evening, I went to back out of my parking spot and as I was turning the steering wheel, the engine bogged down and my battery voltage light came on, I let go of the steering wheel and it went off, turned the wheel and it lit up again. So, I sat and waited until the squealing stopped before I pulled out and it was fine. Also, a couple of weeks before this, the car stalled a couple of times as I was pulling out from my parking spot and as I was driving home, the radio and clock went off for a few seconds and came right back on. Could all this be caused by the same problem, or are they two totally different problems? Also, would this be the power steering belt or alternator belt making all the racket and causing this problem?