When I first got blender, particles were all I cared about; FIRE, SMOKE, EXPLOSIONS!!! 
Awesomeness… 
Anyway, here are some particle tests I did, just to salute the system.
C&C would be greatly appreciated.
cool :o runs off to play with particle system
that’s awesome. i really like the first one. i wish i was that good with particles. it would open up a whole new world in blender for me.
Sweetness! That makes me want to go experiment…