More about search engine optimization and promotion

i am new to this forum, and am sure that somewhere around the answer to my questions have been addressed and redressed many atimes, but as i cant find it, i’ll risk apearing like a complete newbie and ask again.
i recently opened a website , (need all the promotion i can get :wink: ) and want to make sure it rtanks a high as possible. i am up against giants like dell hp compaq pcshop tiny and the like, so i need every bit of help i can get.
how do i get the site up the charts with a very limited budget ?
i am looking for tryed and true methods, simple things optimizing links the full montey.
thanks in advance