I just set up my new miner following the ubuntu guide.  I have 2 x 6970s. 

I'm running headless
I'm running poclbm.py like this:

./poclbm.py -d0 --host=btcguild.com --port=8332  -v -w 128 -r 10 > /tmp/gpu0&
./poclbm.py -d1 --host=btcguild.com --port=8332  -v -w 128 -r 10 > /tmp/gpu1&

(username & password removed).

I'm getting between 150M - 250M H/s on each gpu.  seems to be bouncing around quite a bit.

My GPUs are running about 50%, is that due to the pool?  Is there anything I should do to bump the GPU usage closer to 100%?

Adapter 0 - AMD Radeon HD 6900 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    925           1375
             Current Peak :    925           1375
  Configurable Peak Range : [500-950]     [1375-1450]
                 GPU load :    38%

Adapter 1 - AMD Radeon HD 6900 Series
                            Core (MHz)    Memory (MHz)
           Current Clocks :    925           1375
             Current Peak :    925           1375
  Configurable Peak Range : [500-950]     [1375-1450]
                 GPU load :    59%

Adapter 0 - AMD Radeon HD 6900 Series
            Sensor 0: Temperature - 59.50 C

Adapter 1 - AMD Radeon HD 6900 Series
            Sensor 0: Temperature - 60.00 C