note: I am not resposible for anything that happens to you or your computer, do this at your own risk. However, after saying that, I have not had trouble installing ubuntu ever, except on an external hard drive. Don't do that... very hard to clean up from :D
Step 1: Why?
1. It's faster
2. It's free
3. Everything you will ever need for it is free
4. Something to do when your bored
Step 2: What you need
-A computer... It should be moderately fast, not too old. I am running ubuntu on a 5 year old computer... it's got a 200 gig hd, you only need a few gigs, it has 512 megs of ram, that's good enough you don't want to be too much below that, and a 3 ghz processor but don't worry, you wont need that much power at all.
-Internet. You will definitely want this, and the faster the better
-A ubuntu live cd, you can download it from www.ubuntu.com, don't download the server edition. To burn this properly, you are hopefully on a windows machine. Download an iso burner, I used this one: http://www.download.com/Active-ISO-Burner/3000-2646_4-10792184.html?tag=lst-1 . It works fine, but if you are on a mac or any other os, just download a different iso burner.
-TONS of patience... this can get very frustrating