Is there a way on a marquee, that when you hover over it it stops? Or to make it to where a certain amount of text is shown, then it scrolls to the next one after a few seconds?

Try looking here for one you like best:
http://www.dynamicdrive.com/dynamicindex2/index.html

<marquee scrollamount=10 onMouseover="this.scrollAmount='0'" onMouseout="this.scrollAmount='10'">bladibla</marquee>

please to notice the bold parts!! those A's MUST BE CAPITAL!!