1994 Es300 Problem!

[firestarter]

I bought my 1994 ES300 last year and I simply love this car. It has about 116K miles on it. Lately I have noticed a problem with the electrical instruments i.e sometime when I'm driving, all of a sudden all the lights, instrument panel, radio headlights just turn off for about a sec or two but the engine keeps running. I have also noticed that when I apply brakes, the headlights seem to dim a little. What could be the problem? Please Help!

[dcfish]

You have a bad ground.

[firestarter]

You have a bad ground.

Thanks for the quick reply. I really appreciate it. Hopefully it won't cost me much when I take it to the toyota mechanic.