HELP! lights dim, air-con fan not blowings, wiper blades not working...

[lejolierogue]

Dear enthusiasts,

I own a 99 Boxster which has 60K miles. Yesterday, when I switched on the engine , I first noticed that my air-cond was not working (blower not coming on). And then I noticed that my front lights were very dim. The high-beam only worked when I manually held it back but not when pushed forward in the lock position and finally, my wipers won't turn...

lights in the cabin look bright, signal turn light are fine, rear lights are ok...

I don't suppose the alternator is bad as I drove 300 miles without the engine dying on me. And if it is bad, it should show up on the dash right?

Please advise and thanks in advance...

lejolierogue