[Digital Jedi]

Well, do like I do. I never consider my forums finished. I consistently tweak the style until I get something that I think at least passes for professional. One thing you can do is look at a site that has a design you like and try to figure out what it is exactly that makes that work for you. Then see if it's something that would work well for your style. My site is basically a recreation of a style I saw on eXtremepixels, with some major tweaks of my own.