Should I shutdown my powerbook at night?

I have a Powerbook G4 and am running Pro Tools LE , at night I am not using my computer besides like Aim or AOL. Come bedtime should I turn the computer off everything to let it rest? what do most people do who want their mac to last a while? Thanks -Dan

...thats shutdown everynight...not everything.My bad.

Shutting down and restarting your mac on a daily basis is very hard on it and will certainly shorten its life. Put your computer to sleep when you're not using it, and only turn it off completely if you're not going to be using it for an extended period of time. I haven't completely shut down my powerbook since I went on vacation last summer and probably won't do it again until this summer's trip because I use it on a daily basis.

i have been just putting it to sleep for the last 3 months. It might have been actually off like a small handfull of times, but sleep is the usual answer.

I only shut it down when commuting with it. Otherwise, I have it set to sleep after 3 hours of idle.