Too Many DOM Elements

[AF]

I am building a one page webapp and it's starting to get pretty big. There are several components to the app, each one meticulously styled. On average the app has a DOM element count of 1200+. I have been warned by my YSlow scan that this is too many, and that I should have no more than 700 DOM elements.I am usually quite strict and efficient with my markup and I doubt I would be able to trim much off. I tend to use a lot of DOM elements to get the styling exactly right and working cross browser. How can I dramatically cut the number of DOM elements?Will I have to load more of the content on demand (ajax) instead on all on page load?Does a large amount of DOM elements have a big impact on performance?I would love to hear people's experience with this and any solutions you may have...