I am a video editor with a mac pro running leopard and want a raid 5 to edit off of and store projects on.

I was wondering what would be the best solution:

1. to make my own raid 5
2. to buy an existing one such as a lacie 4 big quadra or a gspeed
3. to buy a drobo (i know its not raid 5 but its close)

any comments or suggestions would be a great help