got my mac mini set up, now i want to change the hard drive.. and ram... its a 1.86 ghz mac mini can anyone provide me with a good tutorial for these operations. please anything will help but i prefer step by step instructions. at this point i am not able to install snow leopard it says "The Mac OS X installation couldn't be completed." i've tried like 5 times, i've repaired/verified disk permissions and formatted the hard drive. if anyone can help that would be great thanks!