T Bills correlated with Bonds?

[Jay Mackro <jmackro@xxxxxxxxxxxx>]

Here's my problem:

I am primarily following the S&P in real time, and would like to
watch the 30 year bonds as an indicator.  However, the S&P is
traded on the CME, while the Bonds come from the CBOT.  The issue
is that each exchange charges fees to recipients of real-time
data.  I'm willing to pay the CME's fees, since I follow the S&P
(as well as the currencies) in real time, but I hate to also
pay fees to the CBOT just to watch the Bonds.  Yes, I watch
Bonds 10 minutes delayed, and it's better than nothing.  Still,
I am looking for situations where the Bond turning points lead
the turns in the index, and with a 10 minute delay, well....

My brainstorm was that the T Bills, which ARE traded on the CME,
might be correlated with the Bonds.  Again, I don't need the
absolute value of Bonds at any point in time - I am just interested
in the up-to-the-minute "shape of the curve".  So, I put up a plot
of T Bill prices, but the results were pretty weird - is this a
really thin market?  Looking at TB8H with 5 minute bars, the chart
didn't even display a bar every interval.  It looks like the trading
pattern for an expired contract!

Two questions:

 - Am I wasting my time here?  Is the T Bill contract even correlated
   with the Bonds? (No need to reply explaining the "yeild curve" -
   yea, I understand the difference between Bills and Bonds).

 - If "yes" to the above question, are T Bills an active contract, and
   I'm just experiencing some difficulty in displaying them?  Or, are
   T Bill futures just so thinly traded, that their plot will always
   just look like random dots?

Thanks

Jay Mackro