I've got a Late 2009 iMac with an i7 in it. I've upgraded the ram to 12 gigs and I'm running 10.8.2. I've been using it for VM testing (I'm going for a Microsoft Certification, irony) and I've been trying to work on running two VMs at once. I've got Win Server 2008 R2 Running with 1 gig given, and Windows 7 running with 2 (more irony). Hypothetically, that should only use 3 gigs of the 12. After checking activity monitor and reading it out. I'm curious how I can free some of this so I'm not having my VM's lag more than Call of Duty on Dial Up. Any insight would be awesome!