Skill Involved with Adding Ram to Mini?

I've been asking questions lately and lest I be accused of not using search before I post , believe me I do...alot. Its just very time consuming to weed through tons of material for specifics....

Anywho... whats the skinny on the skill level involved with getting at the ram in a mini? I've seen some picture sequences, but hard to tell. I'm a handy person mechanically and electrically, but I have also killed one or two freebie computers by opening them up and cleaning them with a vacuum ( hehehe..static charges?)

So, is this thing not something for the weak hearted? Is it going to leave me spitting expletives because I can't reach something that is stubborn and won't come off?

Your thoughts are appreciated, thanks