I love wedding toasts. Whether given by the best man, maid of honor, parents or whoever the toasts are always fun to listen to. You can always tell when someone has put a lot of time and prep into their toast and you can also tell when they are very off the cuff and impromtu. Either way toasts come in all varieties.
As a Wedding DJ in Omaha, Nebraska I get Best Men all the time who will ask me what they should say right before they make their toast. My advice is to come up with a brief and tasteful story you can tell that gives an example of your bond. Then just speak from the heart and always compliment the Bride.

Steve Bergeron
www.bandstandmusic.com
www.bandstandmusic.blogspot.com
www.weddingreceptionsecretsrevealed.com