Ok, I am reading all this great information, and I have to say there are some VERY talented people on here, and I am amazed at the help they offer, Cudos to all of you.

I started a new myspace so I can play and not effect my business page and curious to what size background Image I should save to web. It will be a grungy background so not a lot of detail but not sure what dimensions are recommended to give it a good look with out being too pixilated. I want it to fill the screen from top to bottom and side to side. Sorry if this is a stupid question but cant find the answer to it yet.

well, it really depends on the image that you are using. there isn't a set size for the web. the most popular size is 1024x768.

now my best advice is to try and find an image that you can repeat so that it will fit the whole screen without having to worry. something like a pattern or a solid color.