Someone, I forget whom, shared with me these two good CSS resources, and I thought I’d pass them along. The first is Make CSS3 Buttons That Are Extremely Fancy and the article explains exactly that. I’m not a graphics person, so being able to do something using only CSS is great for me (and being told exactly what to do is even better). A benefit of CSS buttons is that the user does not have to download the additional resources of all those extra images, especially when you factor in images for different states (hover et al.).
The other resource is ProCSSor, a CSS prettifier. It’s just a utility that you can drop a slew of CSS into and it will clean it up as you’d like. It will even work on CSS in an uploaded file or located on a provided URL.