Have you tried adding an edge to your tracks with distortion? It's easy to go over the top... Mo Volans shows how to get an aggressive sound while keeping your mix balanced using Logic Pro.
Space Designer is a powerful tool. Not only can it be used to load Impulse Responses for realistic reverbs but it can also load any .aif or .wav that can be convolved (merged) with any source you feed
Ultrabeat is a drum synth and sample player that comes bundled with Logic Express and Logic Pro 9. It comes with it's very own Step Sequencer which enables you to create patterns for each and every