Unfortunately your degree won’t be of much help to you, other than to be able to say that you have on.
The best way to know what the job market in your area is would be to checkout monster.com or dice.com. They are the leading job boards on the internet.
You gave a decent summary of your overall experience, but you didn’t tell us anything about your computer experience.
Assuming that you don’t have any professional IT experience getting a system admin job with just a certification (it’s MCSA not MSCA) is not all that likely. It takes IT experience to get an IT job, but you can’t get an IT job without experience. Nice catch-22 hugh? All is not lost however. You’ll want to look to start in a help desk or tech support position. This will get you into a company, and after some time at the company you could then move into a junior sysadmin position.
This won’t be a fast transition, at the best you are probably looking at a year or two, probably longer. It can easily take 6-10 years to get into a senior level position which is probably your end goal.
I would recommend that you start with the MCDST or an MCTS in Windows Vista (there are a couple to select from) as these are the more entry level certifications from Microsoft. After you have been with a company for a while you can usually get them to paid for training and tests to get you to the next level.
As for your question on salary ranges, again look towards monster.com and dice.com. You can also look at salary.com as they do an annual salary survey which can provide you with salary info for your area.
Generally tech support and help desk positions will start in the $10-12 / hour range. Junior sysadmin positions will start anywhere from $30k-50k depending on experience, company size, and environment.
I’m sure that this wasn’t exactly the answer that you were looking for, but I prefer to give people a realistic expectation of what they are in for instead of the load of BS that training centers will tell them.
If you would like to provide more information about your computer and IT experience feel free to and I (or another) can revise the answer to provide you with more specific information.