I believe windows 7 is in 64 bit machines, maybe you should check first. If it is, that is what you need to download. They used to say 2 times the amount of ram, before the ram had to get so big for modern systems, but I'm told that isn't so now. I would say 3gb is a good size for a swap file. Some of the people here will probably say 2gb, or even less. I would advise making both a home and root partition as that will help protect your files keeping them separate from your root, operating system and programs. I forget what size elementary is, but since you have 127gb free, I'd say maybe to make the root partition 2 or even 3 times the size required. You will add things to it. Also some of my downloads always seem to go there no matter how I have the downloads set. I tried elementary last summer and wasn't. But I've been seeing a lot about the new distribution they have out, so I'm thinking about downloading it, and trying it again. I've been trying chalet for 3 weeks now. Didn't like it at first, but it's sort of growing on me after a sat a few things up my way. Think I'll keep it awhile longer. Last summer I don't remember them having the donate page pop up, just a little box on the download page. I know pear has the download page that you need to close before you can download.