Boxee Box is currently available as a standalone hardware product but there is also a way to get it onto your own computer thus creating your own HTPC. However, one of the biggest gripes consumers have had with this application is the fact that there is no official remote support. Lucily, that has all come to an end as Boxee has come out with an official remote to be used with PC and Macs as you can see above.
This device will run $50 and is available now allowing both standard remote controls and a full QWERTY keyboard. Sounds like a good deal to me especially if you have your HTPC hooked up to the big screen.