Looking for a good popup/popunder script

Anyone know a good one to use?

If its for a wordpress site then maybe this would help

http://wordpress.org/extend/plugins/lightbox-pop/

Its free but then also have a paid version -

Here are some notes


★ Create popup lightbox
★ Full control on popup content
★ Standard WordPress content editor
★ Display position and dimension control
★ Timeout based popup display
★ Display based on browsed number of pages
★ Css settings like color, z-index, overlay opacity, border etc
★ Shortcode for displaying popup in specific pages

I also believe they have a cookie feature - where it allows you to set how often the pop under should activate on a returning visitor -

I would love to know what offers that would work well with such scripts

thanks