I just got Harley a Sof-Krate for his birthday and he loves it and so do I! lol
It's light, easily collapsable (sp), comes with carry bag and Harley loves being in it. It's made very well and is quite sturdy. Of course it's not made for dogs that are diggers and who aren't happy in their crates. If they wanted to badly enough they could probably dig through the sides. (It even says this on the product, not for immature and untrained animals) I just thought I would share.
Here are some pictures
