My saab died on me at the gas station the other day.  I got a jump and back
on my way.  After that point, I kept seeing the battery light(and the light
just to the left of it) come on very brightly.  I immediately thought it was
the battery going dead from running a small electrical device off the
cigarette lighter, so I unplugged it, and gave it gas for a few to try and
let the alternator build back some charge in the battery.  This also failed,
and required a tow home.
So I took the battery to the local autozone today, had them charge it back
up, and the battery tested good.  I plugged the battery back in tonight, and
the car turned right over.  I took it for a 1/2 mile run around the block,
and no problems, other than the pesky battery light(and the light to the
left of the battery light) staying on..  It ran for a total of about 20
minutes.  I turned it off, and tried to turn it over again.  No luck.. it
acts as if it's not getting a bit of power.
At this point, i'm thinking alternator or possibly the voltage regulator,
but I'd like to get some input, or see if there's anything I can try before
either rebuilding it, or buying another one.  I can get my hands on a volt
meter if that would help troubleshoot.

Any input would be greatly appreciated.  Thank you in advance!

-LC