Can I get two bluetooth adapters and use them to link my non-bluetooth PC and my non-bluetooth hp printer?

Answer 1

Two different devices, of course.

A bluetooth "dongle" that plugs into your computer's USB ports can be purchased at almost any office supply store.

For the printer, you must purchase a bluetooth print server. See http://reviews.cnet.com/4566-7886_7-0.html?filter=500306_5027283_ for a variety of options and their sources.

Seems you will need to spend between $100 and $150 for a quality setup, but check eBay for cheaper options.