I have only two weeks' experience with WordPress. I installed the ThemeID Responsive theme, played with it for a week, read Emil's forum and asked some questions there -- and my site is AMAZING.
I was a little frustrated at first but, I think, mostly due to my lack of experience with WP and CSS and looked into a couple other themes but quickly realized I was best sticking with Responsive.
I've had answers in the forum at 1am from the author and very detailed instructions on how to make this theme very elaborate.
I'm super pleased, and I think you will be too.