Save up for a better lens. The Canon 70-200 f4 L whilst shorter will give sharper and more vibrant images, and there are better lenses serving the 70-300 range or thereabouts.
The 18-55 can be improved on quite easily.
Then consider a body upgrade.
For the time being you've got the basics covered - paddock lens, track lens, body and a prime.
Last edited by andrewc; 27 Jul 2012 at 11:54.
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