Re: battery or alternator?
When I went to pull my SRT6 out of winter storage, it just clicked, too. I tried jumping it with my wife's car, but no success...still clicked. Went home and got a booster unit and let that run for 5 minutes and she started right up. Took her home and hooked up a trickle charger for 2 days and have not had a problem since. The slow charge seems to have revived the battery. Next winter I park it in my garage with a float charger.
PS - Did get the BAS/ESP light (and lost my s/c each time), but the lock-to-lock reset seems to have cleared that up, too.