H.264 Settings for Darwin Streaming Server

Question

I would like to encode H.264 for unicast streaming delivery off of the Darwin platform. We've done a lot of testing and the .mov encodes that we've been putting out at 768kbps (hinted for streaming) have been serving quite slow and choppy off of anything other than a T1 connection.
I've seen some H.264 .mp4 encodes at 350kbps that look incredible streaming but we cannot duplicate this size and quality for some reason with our own video.
At 480x270, or something around those dimensions, I was wondering what the best bit rate and format would be for streaming delivery off of the Darwin platform?
For Darwin we are running 5.5.5 and we are using Compressor 3.0.1. All testing is being done with Quicktime 7.2 on Mac Pro machines over various types of connections.
Thanks,
Mike

Answer 1

After looking through the apple manual I found this:
Resetting the Streaming Server Admin User Name and Password
If you forget the Streaming Server Admin user name and password, you can reset them.
To reset the user name and password:
1 Log in to the server computer as root, open a terminal, and type the following:
qtpasswd someUserName
where someUserName is a name of your choice.
2 Follow the prompts by entering the administrator user name and a password you want to
assign to the user someUserName.
3 Using a text editor, modify the /Library/QuickTimeStreaming/Config/qtgroups file.
For Windows, modify the c:\Program Files\Darwin Streaming Server\qtgroups file. For other
supported platforms, modify the /etc/streaming/qtgroups file. Modify the file so that the user
name you just created or modified is included in the group Admin, as follows:
admin: someUserName
4 Save the file as ordinary text (not .rtf or any other file format).