@DDP
Ooh…the Diamond Cutter…I think I correctly remembered that move's name.
Anyway, it should be as simple as hitting "Enter" twice on your keyboard.
If it's not that, then you should be able to hit "Enter" once hold down "Alt," press 2, 5, then 5 again on your number keypad, and then release "Alt." Then hit "Enter" again.
That's how I make so many different levels of spacing in my posts. If not that, then RandomMan's textile thread might help you out. That goes into HTML a little bit.
Covering up my massive edited post streak with Philly Twilight.