Well, after using PCs for a couple decades (I think my last Apple computer was a Laser knockoff of an Apple IIe in the 80's) I just ordered a Mac Mini refurb yesterday from the Apple website. Just the basic version with 2 GHz processor, 1 GB RAM, and 120 GB hard drive. I figure if I actually do like it, I can upgrade or move to higher model Mac computers and so on. The one thing that I read I should do is order more RAM though. I've always preferred Crucial brand for my PCs. I see that Amazon and Newegg have pretty good prices. My question is: Should I upgrade to 2 GB or 4 GB? If 2 GB, do I have to buy two new sticks or just one stick for this machine? On the PCs, they usually recommended installing like sticks in pairs and I don't know on a Mac Mini if that is required or not. Thanks!