Some photos I took recently at a wrestling match, I'm pleased with the results - they were taken using a Nikon D5000 with a Sigma external flash and 55-200mm Nikkor VR lens.  The flash was put at 1/2 and on manual because it was coming out too dark and around ISO 800 minimum to capture the action.

Post your comments and thoughts if you like these pics :)

Thanks, Simon.

P.S.  Checkout http://www.masteringdigitalphotography.org for some great photography tips.