Attention Experts: tween class and blur filter

I’m working on a concept where i have a somewhat large movieclip (vertical) which has divided areas within it (ultimately will be movie clips).
when the user clicks on a nav buttton, the vertical clip will slide up or down and to the appropriate height to view the requested clip.

I’m using the tween class and i’d like to add the blur filter to the tween i’m creating… is that possible? all the documentation i’ve seen so far involves using one or the other… not both simultaneously.

also, will the tween class be able to handle a fairly complex clip and still animate decently? I imagine i’ll build other animations and have .pngs in that clip i’m tweening…

i’ve heard that the blur filter uses a bitmap of the clip (generated at loadtime) so there’s some overhead there and will i have to create a bitmap object of my clip first each time the tween occurs? can anyone comment on performance issues with combining the tween class and blur filter?

i’m kind of attempting to do a blur scroll (check out oringe) but with an animation instead of a scroller.

thanks a ton for any input!