Logo For Fitness Site

the web site is http://ejerciciosbajarpeso.com/ (exercises to lose weight)

The Web site is: http://ejerciciosbajarpeso.com/
It has 4 categories: Diets &Recipes, lose weight, abdominals, secrets to weight loss.
The site sells affilaite products for Spanish speakers.

The target audience is the hispanic market. Spanish speakers who would like to buy fitness products but realize all the products are written in English. This site aggregates spanish fitness products into 1 site.

I am looking for a logo that I can put on the first page.
As a point of refrence take a look at the following site: http://opinionistas.com/ ( I like how she uses the logo on top of her tag)
I will be using the logo as a way to brand the site.
Please make sure the logo - will be in a format so that my developer will be able to put it into wordpress.
I was thinking as an animal as the logo/mascot ( like a kangaroo, animal figure) but please don't let that preclude you from being creative, If you have a good design.. plese submit it.