Hi
I'm a teacher of IELTS and I am in the process of putting together a website/blog for IELTS. It's all completely free (for now!!). I've collected all the best IELTS materials I could find on the net (sadly it's not all that good). I have also started posting my own sample essays. These are very much written as training models for learners to use and learn from.
The link to them is
http://ilsielts.blogspot.com/search/label/sample%20essay. Can I also make a suggestion? Sample essays are good, but you also need to think about the right sort of vocabulary and coherence and cohesion. This is a top tip: 25% of your marks are for coherence and cohesion: the same as for grammar - so practice these skills. You can of course find links to them on my site.