I can pretty much say the same for the Computer Hardware and Software support roles. If all you know is how to fix computer and sort out problems with Windows, then you are going to be finding yourself in a VERY COMPETIVE and FLOODED Market.
Where is 1999, I used to charge AU$50 per hour in office for computer repair. I now am competeting with people that are about to as low as AU$30 per hour onsite. Lowest I will ever go is $60 if it's a quiet period (like christmas or easter)
And the other problem with programing and support roles for the bigger companies are getting out sourced to places like India because it's cheaper out there. Same things like Web page publishing. If I am not competting with some one that values there time less than me, I am competing with the off shore job market that can do it cheaper.
I find that they only way to really excel in IT. Make sure you have makes you stand out from the rest. This might mean that you have to do a little more research and study. But it gives you a competative edge.
Eg. Like I specialise in Point Of Sales Hardware and Software. It's a rather demanding job. But atleast I got clients that will pay up to $120+GST per hour for my time.
Over all, if you can avoid getting yourself into IT, the better.