Friends, Those who have this model, what are your thoughts? I'm looking at them used, and eyeing a brand new one at my school's computer store. How do you like your machines? I'm really going for reliability over speed. Lastly, what is a reasonable price for these machines? My school wants 1799 for one brand new, sealed in the box. I hope it comes down a bit when/if (big IF??) the Penryns come out. It looks like these things don't go for much less used. I'm always amazed at how much MBs/MBPs maintain their value. Thanks for any comments/thoughts.