I've run across a cool syntax highlighter for use on web sites called dp.SyntaxHighlighter. It highlights (and more) the following languages:

1. C#
2. CSS
3. C++
4. Delphi
5. Java
6. JavaScript
7. PHP
8. Python
9. Ruby
10. SQL
11. Visual Basic
12. XML / HTML

Not only that, but it does a fantastic job of rendering too.. check out this little snippet of C# code.

/// <summary> /// Gets a polygon from a string /// </summary> /// <param name="strPoly">(0,253),(370,115),(417,122),(456,92),(563,101),(303,477),(0,479)</param> /// <returns></returns> public PointF[] GetPolygon(string strPoly) { strPoly = strPoly.TrimStart(new char [] {'('}); strPoly = strPoly.TrimEnd(new char [] {')'}); strPoly = strPoly.Replace("),(", ":"); string [] strPointCoords = strPoly.Split(new char[] {':'}); PointF[] points = (strPointCoords.Length > 0) ? new PointF[strPointCoords.Length] : null; for(int i = 0; i< strPointCoords.Length; i++) { string [] pair = strPointCoords[i].Split(new char [] {','}); points[i] = new PointF(Convert.ToInt16(pair[0]), Convert.ToInt16(pair[1])); } return points; }

You have to install some javascript(s) and styles along with your blog engine, but once that's done, all you have to do to get the output you see here is wrap your code in some <textarea> tags.

 -Brendan