I just ordered the standard suite last week, which I assume will come with the USB interface. Since I would like a dedicated laptop for HPT, I pulled an old machine out of my pile which slightly exceeds the minimum requirements.
What I cannot find, however, is information on whether HPT works OK with a USB1.1 interface, or if it requires USB2.0? This laptop is old enough that it came with Win2000 installed. I've loaded a clean install of XP with the latest service packs, and the laptop still seems to perform well, but there's a good chance that the hardware is original-generation USB.