vertical dropdown menu for pages and categories

Hello,

I have a website which i would like to convert to wordpress theme. The problem is i’m getting solutions and free plugins for top (horizontal) multilevel menus. But i’m my design is for left side (vertical) multilevel menus which contains pages (sub pages on rollover) and categories (sub categories on the rollover).

I tried searching for this kind of plugin in wordpress plugins but i’m getting only multilevel vertical menus for categories. I’m looking plugin which can handle pages and categories in vertical (left side area).

Looking for free plugins if possible.

Thanks in advance.
J