It's hard to use the HP as anything very useful for hardware because it lacks a full USB port. Do you live near a MicroCenter? Can you get the TW700 instead? http://www.microcenter.com/product/4397 ... et_-_Black
The TW700 has a full USB 2.0 port so you can have it as a print server thing. Only major caveat is you'd have to use VNC or similar to remote in, since it's not Windows 8.1 Pro (for remote desktop). Or venture into installing Linux on it.
I just got the Pi 2, and as people say it's not really a fully usable thing until you dump another $30-40 into it. It is very snappy compared to the first Pi though!