Hi! If you plan to interface to a PC for more than just a few projects, you may want to buy a USB to TTL serial adapter. Here's a link for one place in Western Canada, where I live;

http://www.hvwtech.com/products_list...&SubSubCatID=0

Also, I would bet Digikey sell them and Digikey seems to be everywhere.

One last note, Mr. E had a post a while back where he reccomended a program called RealTerm? The application is way better than Hyperterminal and easy to use. It's here;

http://realterm.sourceforge.net/