I went to Atic Computers, which has a very good reputation and is in my neighbourhood. Since computers are not bicycles and as such much about them is unknown magicks to me. The tower itself cost about $340, along with the latest version of Windows Vista (as per the recommendation of some friends who know more about computers than I) and Microsoft Office 2007 Home and Student. And yes, I know that Microsoft is the to computer software what Shimano is to bicycle parts.
However, when I got it home and tried to set up, I felt as if I had to learn a new language. I found the stuff of Windows Vista to be a rather overwhelming for me. When I tried to go online, I found myself going around in circles. At this point, I went back to my trusty H-P Pavilion and resigned to that I can't do this alone. I will need to ask someone to come over and help me set it up properly. I cannot do it over the phone as that is too anxiety triggering for me.