If you have FireFox, there is a handy tool that you can use to do your bbcode for you. Its called BBCode.
The link can be found
here.
Here is a picture of it:
Note it has more options with it. I just went into the settings and had it only show the BBCode menu seeing as that is what I only use.
All you have to do to use it is right click what you want to edit and select the appropriate menu, for example bold. It also has a nice link creator. Just copy a link and goto Clipboard>Make Selection URL and it will create the text you highlighted into a clickable link.
Just thought I would share this with all of you.