I know a lot of people just leave their desktops on all night (including me) and resume zombi-ness in the morning. However, other than possible memory leaks, what are the pitfalls of this? I've seen from personal experience that Linux systems do better than Windows systems, in the sense that a PC will slow down to a halt after large periods of uptime (might be different with the newer Windows'). I'm running OpenSuse and some other flavours of Linux, does this still apply to me?
Also, let's say I want to shut my desktop before I go to bed. Is there ANY way for me to bring it back up at a certain time. This may seem like a completely idiotic question but I wonder...