Hey everyone, another new user to the boards (but by far not a new user to forums). As my first post I wanted to say something and then ask a few things. First of all I wanted to say that this site is incredibly convienant for anything Mac related, I've found more on this site in the past two weeks than I have anywhere else on the internet (really). Okay now to some questions, if anyone wouldn't mind answering them. Since December of 2005 I have wanted to switch to Mac for good. Mac OS X has won me over completley, I am sick of the PC and I am sick of Windows as well, I want something fresh and more productive, the Mac fit right in. (Odd of me considering I was one of those loyal PC users for years). However, due to my budget I could not switch until late April. I am getting the Intel iMac 20', the only upgrades will be the RAM (from 512mb, to 1GB), and the Graphics Memory (from 128, to 256). I was originally going to go to the Apple store here (I go there often) and purchase, however I found out that they can not do the video upgrade, that has to be direct from Apple. No big deal I thought, so the online store is where I will go. Now, I have to admit, with all my research and damn near "obsession" with Apple and Mac (and my iPod), that I still am a bit nervous to make a full on switch. My father and brother are computer whiz's, but they associate only with Windows and the PC. They don't mind that I'm switching, but of course if I ever have a problem, I'm completely on my own. I know a good deal enough about the PC to get me by, but sometimes I will run into problems I just will turn to them and they more than not fix the problem. With my switch I've been having a very sharp eye over all the pro's and con's. I am finding the pro's outweigh the con's, but some things are still bothering me. So I had a few questions. 1) Is there anything I should honestly worry about in switching? 2) What hardware troubles (if any) will I run into? (for example, I hear that the Intel iMac can overheat if not careful, and me living in Arizona probably doesn't help that. Or like the processor fan start blazing fast out of no where.) 3) Are there any manuals or training guides I should read up before I buy? Sorry if some of these seem over paranoid of someone, or rather beginner, but hey we all start somewhere. I just want to be reassured that things will be fine. After reading some things on this site of people having hardware problems and finding it hard to find answers (meaning, the most common answer is "call apple" or "go to the store"). Thanks in advance for any help at all.