Templating Custom Fields

I'd like to override the default output for the Latest layout. I've gotten as far as to creating my template override, but how would I go about calling individual custom fields? The default code is using an array to echo out custom fields, and I don't know how to query specific tables other than referencing its ID.

	<?php if ($post->fields && $this->params->get('post_fields', true)) { ?>

				<?php echo $this->output('site/blogs/entry/fields', array('fields' => $post->fields, 'post'=>$post)); ?>

			<?php } ?>

The end-goal is to stylize and combine information from my custom fields. For example, one field has a URL description, while another has the URL. Instead of meticulously inserting proper markup in each post I can just have it taken care of automatically with custom fields.

Thanks guys! No worries for delay; I know it's the weekend.