((((Specfuz & Hubby, thoughts and prayers for you)))))
I got into nursing because I was a very sick lil kid and found a fascination for it. The nurses were just great to me in the hospital and always explained things. I felt better about what was going on, so I became a glutton for this knowledge.
So I agree that knowledge is power.
There are some good cardiac videos out there and other great resources on the Net. You'd want to look at patho stuff, specifically. Since you've already done your pre-reqs, you have a good grasp of A&P. This extra study will help you tremendously when you have clinicals and when you pass your boards and become an RN.
Here's a great site to get you started.
http://www.heartcenteronline.com/myh...ia_Center.html