I utilize Frost Nova --> Blink constantly! Is there a macro I could make to allow for one-button execution of these two spells? I know there is one for Blink + Look, where you Blink and then the camera flips 180 degrees. Maybe incorperating all 3 could works as well?

Wowmacros.com this website might help you a bit. If you need more info on macro's, just visit the official wow forums, there is an insane amount of info available there.

/castsequence frost nova, blink

should do it. Note that you'll have to hit it twice -- WoW macros will only cast one spell per keypress, with a very few exceptions, to keep people from getting a big advantage by using macros. The global cooldown still applies as well, so if you do the second hit too quickly, you'll get "spell not ready".