Soft Grey Wireframes v1
The standard Axure widgets can be a bit harsh on the eyes: boxes are default black-edge, white interior, and text is hard black.
This widget set (inspired by a .NET article on better wireframe deliverables) takes a softer approach to boxes and text and includes plenty of options for presenting the visual priority of elements using different grey shades.
I've also included some nice text samples, with better built-in line-spacing, to suit grid based designs based on a 10 x 18px pattern.
You'll have to make your own "50 shades of grey" joke, I'm afraid!