I think spirit boards are far overhyped, personally. They are a powerful tool, obviously, but malevolent spirits can contact you just as easily through a pendulum or a deck of cards.
I think spirit boards are great for communication (with spirits, guides, beings) because you have the alphabet right there, instead of the yes/no of a pendulum or the interpretation of tarot cards. Just make sure to put up a nice energy barrier, and only allow that spirit to enter. If it gets kind of weird (assuming this isn't a nasty spirit), just shut it down and close the circle. I used to keep a ouija journal, but I have no privacy now at school. I have never had a mean spirit come through, so I believe it's who you WANT to contact. You may not always get who you were looking for; but if you go looking for trouble, you'll find it.
Let us know how it goes :D