Hi, I'm trying to do the same thing. Similar to
http://lens.blogs.nytimes.com/ (but that is done in Flash.)
One thing I'm trying is overriding some Cycle inline css, ie:
- .slideshow {overflow: visible !important;}
.slideshow img {display: block !important;}
.slideshow .second_slide {left: 710px !important;} /* class added to the 2nd slide */
What this gets me is my first slide, with the second slide partially visible to the left:

If I click "next" I get this...

...which looks right but isn't (the second slide is still to the right, we're looking at slide #3 which Cycle positioned below slide #1. I manually forced slide #2 to the right in my css).
CONCLUSION:
I need a way to have the next image cued to the right; Cycle uses z-index then slides them to the left, but the slides end up at left: 0. Not sure if Cycle can do it!