Sup guys, So I bought a Mac Mini (320gb HDD model) couple months ago and I've been playing around with it. A lot of it, is pretty strait forward if you have used a PC before but I have a couple questions so far. 1. Sleep Mode: Whats the general consensus about using sleep mode? Is it better then hitting the button on the back? Is it basically the same thing? Does Sleep mode bog down the RAM? With my PC if I were to sleep it every night for a few days, the memory would start to fill up and applications would run slower? I would imagine this has the same effect on a Mac but i figured I'd ask. Also is there a way to setup a hot key to put it into sleep mode? Like "Command / S" or something like that? 2. Maintenance: With Windows I was always using "disk clean up" and running spyware and virus programs to keep it clean. I understand Macs are less vulnerable to virus and spyware but is there anything I should be doing to keep it cleaned up? or does it do that all itself? 3. Time Machine: I tried to use my external hard drive as my backup but, because I bought the hard drive before I bought this, it needs to format it... and thats no dice. How much space on average do you need for Time Machine? could I get away with just a 8gb (or so) jump drive? how often would you recommend I use Time Machine, or is that program a joke? any tips for a new user?