Space Truck

We have decided that this year we are going to take care of a lot of the outdoor house maintenance tasks that we have been putting off, like power spraying the house to clean the siding and sealing the deck. Can anyone tell me where I can find out more about how to do this? I need to figure out which of the different deck sealers I should use, and the best way to use them. I want to make sure I do a really good job on my deck so that it looks nice and stays in good condition.