I have a mac mini late 2009. It has the C2D at 2.26 GHz. I have upgraded the RAM to 8GB and installed a 7200RPM 500GB HDD in it. It's currently at 10.6.8. I've been contemplating going to Mountain Lion. I think it's only 19.99 correct? I really only use it for web surfing, emailing, doing some office work. Nothing too heavy on it as it's in the family room. I have several more powerful Win 7 PC's in the computer room. I should also add that I run Virtual Box on it with a Win XP virtual machine that I use a good bit. I'd like to get some other opinions from more seasoned Mac users. Should I upgrade this to the latest OS? I've heard and read some stuff that say Mountain Lion is MUCH more of a resource hog than Snow Leopard. Thanks!