Check out this awesome awesome list of freebies from Microsoft.
http://bhandler.spaces.live.com/blog/cns!70F64BC910C9F7F3!1231.entry
This is a lot more than just Power Toys, its a really really big list.
I something that I've longed for, i.e.
- GroupBar (just wish it was easily downloadable)
Technorati : freebies, freeware, microsoft