I have been working on Drupal for the last 6 years (since Drupal 4).
I have built a wide range of websites on Drupal, from online shops to highly complex data management, forms, export and import data from various sources, integration with various services as Google charts and so on.
In the last 2 years i worked only on Drupal. I love it.
From a Photoshop layout to practically anything on Drupal (custom modules and themes).
A few projects I can remember, in no particular order:
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An so on.
Almost for each project I had to build a custom module (from a simple ajax newsletter block, to admin interface management, mapping taxonomy with dynamic properties, etc) and for each website I had to do a complete or partial .psd->html, js, css job.
Thanks for reading this.