I would like product pages to change image when selected attribute is chosen

I would love to see the ability to have an image for a particular attrib/option value show up only when that option is selected, rather than have a "list" the all of the attribute images... This would make for a much cleaner look to the page.

YES, high up on my wish list too. And while we are add it auto update the price if the option is +x$

There is a commercial offering that I'm "aware of" (it doesn't do the price update, though). PM me for details.

Stock by attributes (currently only for product with single option names) offers such an image swap for a chosen attribute.

Dynamic Price updater supposedly offers the onscreen price modification when the attribute selection has changed. I haven't used it yet but there appears to be a forum thread on it

And once the image is swapped, carry it forward to the cart as well. Say you sell t-shirts and you have them in blue, green, red. If the red attribute is chosen, swap in the red t-shirt. Add to cart, the cart will show the red t-shirt.