How to rotate text widgits when each page loads?

Hi there,

My blog address is: http://paperandlace.com/

I would like to rotate two groups of sponsor banners each time the page loads.

I have large and skinny and want a new one to show at the top of each group each time someone loads the page (I hope this makes sense!)

I tried the random text plugin but it does not seem to work for when you still want them all to show (seems to rotate between each only showing one)

Any advice would be much appreciated!