Windows: Bend is a new, free, fast and elegant text editor that focuses on simplicity.
Bend supports syntax highlighting for a number of languages and is extensible so you can add more.
Search is very Safari-like, in that the text fades out to highlight just what you're looking for.
Bend provides some great display options too, but keeps it simple so the focus is on the text. You can integrate Bend into the command line and Windows Explorer.
Features aside, Bend also concentrates heavily on speed, using XAML / WPF for hardware-accelerated text rendering. Bend is still in beta so expect a few bugs, but is available now as a free download.