Hey guys, so I just got a baseline 13" MBP. I like to run windows and ubuntu in a vm but even running Windows 8 with 1gbs of ram makes my system very laggy. The CPU usage will be 80% idle but ram pages out to like 2gbs pretty fast. And thats with just one vm. So should i upgrade to 8 or 16? I'll mostly be playing casual games, photoshop, imovie, spotify, or browsing in OS X while the VM's run.