Can a (currently available) iMac use more than 4 GB of memory? I am wondering if the limit is enforced by hardware or if more memory is merely not officially supported but might work. Also, what do the rumours and expectations say about the next series of iMacs? Frankly, if it were possible to put more than 4 GB of RAM in an iMac I would buy a new one immediately. I currently have a 2007 iMac Core 2 Duo 1.16 with 3 GB and a 2004 iMac G5 1.6 with 1 GB. I find the mac pro too expensive, especially considering that the standard configuration only comes with 2 GB of memory. I looked into Sun (Intel-based) workstations as an alternative to run Windows VMs.