Return Custom Post Type from a Custom Post using a Custom Taxonomy

Hi there,

First Post here please be gentle :o)
Ok i have problem trying to link data on my site, i have had it working using the Global Category taxonomy but id prefer to use a custom one. The code below worked until i started to use a the custom taxonomy and i have tried to find the correct way of doing this for the last two days with no luck. Basically i have a Custom Post type ‘Condition’ and i want to display all the Custom Post Type ‘Testimonial’ that have the same Custom Taxonomy ‘medical_terms’ any help or pointer much appreciated.

my code that worked using Categories:

$categories = get_the_category($post->ID);
	if ($categories) {
		$category_ids = array();
		foreach($categories as $individual_category) $category_ids[] = $individual_category->term_id;

		$args=array(
			'category__in' => $category_ids,
			'post__not_in' => array($post->ID),
			'showposts'=>5, // Number of related posts that will be shown.
			'caller_get_posts'=>1,
			'post_type' => 'testimonial'
		);
		$my_query = new wp_query($args);

		if( $my_query->have_posts() ) {

			echo '<h3>Who we have helped</h3><ul class="nb">';
			while ($my_query->have_posts()) {
				$my_query->the_post();
			?>
			<li><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>

			<?php
			}
			echo '</ul>';
		}
	}

Regards

Mick