Originally posted by: zippy
I started a computer business over the summer with a friend - nothing serious, just to line our pockets for the summer and to put some away.  For him, he pays for his car insurance and the amount that he personally has to put towards college next year.  For me, well, I don't have a car, so most of mine (I spent some by going out a lot earlier this year and buying an iPod - that's pretty much the extent of it though) went into my bank account and is going towards college.
We started out charging $35/hr and put fliers up all around our neighborhoods.  We got a few calls off of that.  Then we got a call from the newspaper and they did a full page article on us as their "Business of the Week" and business took off.  Of course, in the article we were asked how much we charged and we had decided, before the interview, to raise it a bit to $45/hr. 

  Almost all of our clients were individuals (only maybe two businesses) and they all paid the $45/hr.  And we're just students too - not college graduates that majored in CS.  Of course, we live in a, on the whole, rather affluent suburban area.
So, to me, $55/hr doesn't seem exorbitant.  Certainly though, you could drop it down and you might get more business.
(Note: I also have experience working for my sister's fiancee who does the same kind of business - he has built up a very strong clientelle over the last 3 years and now charges $75/hr (and has employees now).  It's slow in the beginning, but once you start getting name recognition it's all uphill.)