Second, have you tried doing a search using AfterDawn's Search Feature? There are countless threads out there that have asked the same general question you just did and they have loads of information. If you need the link, here it is:
Also, you can do a search in google to look for guides created by one of the members here, his name is bbmayo. You can also search for his guides using the Forum Search feature here on AfterDawn.
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I mpeg, therefore I am.
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Settle in with the beverage of your choice and ...
Read this first, before you ask for help
http://forums.afterdawn.com/thread_view.cfm/183136
The third tab above "Guides" will answer most of the rest.
