I have the opportunity to buy a lightly used base 27" iMac. It is the current version as of now. I have heard that the line might be updated in the next 2 weeks, so I was wondering what you guys thought. $1200 for a used w/ applecare, or to wait and pay the $500 difference to have the newer models w/ Intel's new chipset. It probably won't be used for any heavy video, photo editing, just basic computing. I've been trying to weight it out, but would really appreciate any input. Thanks in advance.