There are numerous types of speech and giving any speech can be terrifying but all speeches follow a similar outline. Below you will find pages which have details of various special occasion speeches. If you want to get a really good feel for giving a speech I suggest that you look, not only at the type of speech you have to give, but a few of the other ones as well.
Please remember that people may complain if a speech is too long, very few people complain if a speech is short!
Look here at my list of ideas for different types of speeches/talks
For more detailed information on presenting a speech please read my Giving A Speech page