Stylin with CSS

I'm two pages into Charles Wyke-Smith’s Stylin’ With CSS: A Designer’s Guide and I can tell that this book is going to help me out a great deal.

I often sit around mentally arguing back and forth whether or not I need to be so technically savvy or not. Should I try harder to be more of a "developer" AND a better designer? Or should I just focus on design?

The first sentence on page four of the book says: "Like any artist, your ability to achieve your creative vision is governed by your technical abilities."

That is a very powerful idea, and for me it calms down the argument I have against becoming a code jockey. It will be important. I'm going to "get my learn on" with this book.