Personally I leave it running, just turn my monitors off.... I do this to hopefully preserve the life of my HDD's, reduce the times that they shut off/boot up? But then again I have heard many different rumors about what people do and whats right. What do you fellow geeks do?
I have mine set to go into stand by after it has been idle for over 3 hours, and then with a tap of a key or a wiggle of the mouse, its ready to go again. I reboot as needed or when I notice it starting to lag a little bit.
I put it on hibernate, since it's a laptop that I'm mainly on. On the desktop I usually either shut it down since I don't use it a lot of put it on hibernate.
I leave my computer running but turn off my monitor and G15. I leave it on because i have virus scans that run overnight so it dont slow it down when i am on it :)
I do a complete power down all of my computers and equipment every night, except for printers and routers. Vista will not let me come out of hibernate successfully, it gives me the scrambled screen / scrambled eggs effect - so I have to do a hard power down anyway. I've always powered down for the last 30 years anyway, unless I was running work conversions or utilities / defrags / spyware antivirus scans at night.
Do you happen to use a Microsoft Wireless Mouse? There is a known issue with the Intellipoint software that comes with those that keeps Hibernate from working on Vista, but you can download a patch to fix it.
I know, I know.. a Microsoft product having compatibility issues with Vista. Go fig.
Yeah, I've got the microsoft wireless mouse 3000 so I just shut my laptop off completely every night unless I am downloading something that will take overnight or if I need it to defrag or something. My eMac gets shut down every night no matter what except when downloading a large file again. My iMac G4 gets shut down every night and goes to standby every 30 minutes because its behind me and doesn't get used much :P It mainly sleeps during the day and is dead during the night. They all stay off except for downloading and such during most of the day because of school and I don't have time in the morning to use them so I keep them off until when I get home. Saves a bit of power and I don't know which rumors are true but my HD is fine on all my comps... I think that would be the worst problem but my grandma's motherboard blew up because she had it on for like 3 months straight... I don't want mine to lol. (Plus hers was WinME then she upgraded to XP and 13 days later it happened, so idk... yeah, 13 days left on and another month or so before that) My TVs are off most of the time but they use electricity anyway because all electronics use electricity even when off. TVs and other remotely-startable devices need it for remote starting and computers need it to charge the system battery.