Ever consider a Mac mini? I made the switch a little over three years ago. Now I have a 24" iMac a 11" Mac book air (awesome I must say). My employer replaced my Dell desk top with a 24" Mac (at my request) a year and a half ago and recently got me a second 27" iMac for other job duties last February. I have only had one issue with all of them - the heads died on my 24" work iMac. I swapped out the hard drive and it's back better than before! The Macs are worth the extra $!