Paying for nursing school?

Now, a little background... I've been going to Baker College for about 4 years now. I've gotten my Associate's degree in computer information systems, and am coming up on recieving my Bachelors in the same. However, ever since I got my Associate's degree, I've had an incredibly strong desire to switch into nursing. For the past 2 years I've been telling myself that it is too late now, I am close to finishing so I might as well do it... But the computer field is no longer a field I am at all interested in.

Now, the problem is, I will not have access to financial aid if I were to switch.

So, I was wondering how the lot of you who have/had decided to go to nursing school after already obtaining a degree were able to afford to do so?

Also, would it be worth my while to get cna certification, or should I just look for a job in the computer field?

Oh, and another question... It's been very, very difficult working towards my BA in CIS. I've begrudgingly been trying to move forward with it, but my grades, along with my motivation, are becoming progressively worse. I had been on the Dean's list/President's list throughout my first 2 years up until my associates, maintaining a gpa of aournd 3.8... Since then, it's steadily dropped to a 2.5. I have approximately 10 courses left until my BA... Should I try to finish with this? Would I have an easier time getting into nursing school if I already had a BA (moreso than already having an associates)? I am absolutely positive this isn't what I want to do... Which is why I asked if I should go to work as a CNA.