Looking for an enhanced WebClient/HttpWebRequest with Fiddler-like info - is there one?

Before I get too deep in creating this, is there a library out there for .NET that provides Fiddler-like statistics in a HttpWebRequest / WebClient request?

Some things I'm looking for:

1. Time to First Byte
2. Caching Headers
3. Response开发者_开发百科 Codes
4. Transfer Rate (bytes/sec)

How about FiddlerCore? It is the fiddler library which you can include with your own .NET application. From the web page:

FiddlerCore allows you to integrate HTTP/HTTPS traffic viewing and modification capabilities into your .NET application, without any of the Fiddler UI.

Eric Lawrence also did a recent .NET Rocks episode with some more background information in case you are interested.