Code Highlighters:

• Actipro Code Highlighter -  works well for websites and pasting into Outlook.  It even does outlining similar to Visual Studio.
• GeSHi demo (Generic Syntax Highlighter) - works with MSN Spaces (for the most part).

• C# and the .NET Platform (2nd Ed.), by Andrew Troelsen
• C# Unleashed, by Joseph Mayo
• Visual C# .NET Step by Step, by Jon Jagger & John Sharp

• 10 Tips & Tricks to jazz up your C# business solutions/server products, by Salil Khedkar
• MSDN: .NET Framework Quickstarts - "over three hundred QuickStart samples" of .NET code.  Lots of good stuff here to help you get started.
• MSDN: Microsoft Visual C# Developer Center (rss)- a wealth of information on C# straight from the horses' mouths.
• Ultimate Visual Studio .NET AddIns - a derivitive of Scott Hanselman's Ultimate Developer & Power Users Tools List.