hi all, recently I have ben lucky enough to get approved for financing for a new iMac. the one I'm getting is a 21.5 inch quad core i five processor, and a 1 tb drive that is 5400 rpm per minute. my question here is, have any of you had this model of iMac, and if so, how good are these compared to some of the older iMacs, and what is your experiences with voiceover on one of these iMacs verses voiceover and software on say a mac book pro? any advice about this mac would be helpful. I also forgot to mention, this iMac also comes with eight gigs of ram, i would have upgraded to 16 gigs, but I don't have an extra hundred dollars. my final question is, if we buy these macs like this, can we put more ram into them? thanks.