I have always asked the question... What if Joomla was more like Wordpress in its ease of use? What if Joomla could easily and intuitively intergrate articles with photos, tagging, and comments? K2 is the answer.
K2 is a simple to use CCK. It uses an Joomla formula you are already familiar with and gives you advanced features that only Joomla 1.6 dreams about.
Any website I create will include k2 and I suggest you do the same.