So I finally off-loaded my MacBook Pro and use my MBA as my main carry around machine. I'm looking for an iMac for the house so the wife will not have to worry about a portable machine (and taking care of it in terms of constant power source to destroy her battery). My question is; it seems that I always end up looking at this nearing the middle of their life cycle, that being said, do you think it's safe to purchase this now or have we heard any word on a refresh coming soon? 