I've got one of these myself connected upto my MCE system:
http://www.xsreviews.co.uk/reviews-115.html
If you can get used to the laptop 'style', you'll find it's far superior to the MS offerings. Well it is for me as it works via kvm switch with my mac-mini, and of course unlike the MS keyboads isn't I\R which requires line of sight but YMMV of course.
HTH