Linking to existing files is also important to me, as our automated build and deployment process FTP's our products to the website - it is too time consuming to upload individual files via web interface.

Another request is the ability to display MD5 checksums for files.

Here is sample code:

public static string GetMD5CheckSum(string filePath)
{
 MD5 md5Provider = MD5CryptoServiceProvider.Create();
 byte[] md5Bytes = md5Provider.ComputeHash(ReadFileAsByteArray(filePath));

 StringBuilder sb = new StringBuilder(md5Bytes.Length);

 for (int i = 0; i < md5Bytes.Length; i++)
 {
  sb.AppendFormat("{0:X2}", md5Bytes[i]);
 }
 return sb.ToString().ToLower();
}

Kind regards,
Gareth.