I definitely recommend converting text to outlines (type>create outlines). It will turn all text into vector paths that are scalable with no quality loss. Also, if you have your logo sent to be printed for business cards or other materials, the printer won't need the fonts you've used because there is no font data in the logo. It would be a good idea though to save a main version with the text intact so that you can edit it when needed.
As long as there are no images in the logo, all the other Illustrator artwork will scale cleanly.
Hope this helps!