Here's how to print a PDF in booklet form (2-up printing, double-sided), from OS X.
Adding and configuring the printer
First, find and configure the HP LaserJet 8150.
In System Preferences -> Print & Fax, click the "+" button to add a new printer.
Fill out the form as follows:
In the Installable Options page, make sure you click the "Duplex Unit" checkbox:
Install the booklet software
Download and install the "Create Booklet" software: http://web.mac.com/vogelbusch/Site/Programs/Eintr%C3%A4ge/2009/7/22_Create_Booklet_1.1_support_Snow_Leopard.html
This software is needed because booklet printing requires rearranging the pages in a way which is more sophisticated (see http://en.m.wikipedia.org/wiki/Imposition ) than what the OS X print dialog allows.
Print your booklet
Open up your PDF, choose File -> Print. From the "PDF" drop-down menu (bottom left corner of screen) choose "Create Booklet":
The "Create Booklet" software will churn in the background for a moment, and then you will see a new booklet-version of your PDF open up in Preview, which you can save and print.
When you print the booklet, you'll need to make sure it prints double-sided using the "short-edge binding" layout:
Use the paper cutter to chop your booklet in half (warning: don't expect to cut more than 5 or 6 pages at a time without causing tears), and take the pages to Kinko's to have them bound with spiral plastic (for a charge of about $6).