1995 Honda Civic A lot of bad things at once

Good evening,
While driving today, I notices a sound almost like whistling, or a high pitched squeaking coming from my car as I revved. I parked it, and let it rest for a couple of hours. I then started it again and it was vibrating more than normal. I could feel it in the shifter and the clutch. On my way home, my battery light came on. Finally, just as I was arriving home, my power steering gave out.
I think it may be an alternator belt, but I am not sure. I have never had it replaced, but I did get a new alternator about 3 years ago.
On a slightly related note, I am about 1,000 miles past due to for an oil change (been on this last bit for about 4,000-5,000 miles
Please help,

Thanks,
-Chris