Originally Posted by gone_fishing
1) Take existing wiring that used to power a light and keep connected inside of a junction box. (yes, will be accessible)
2) Run wire to a central junction box.
3) From this box I will run to an outlet
4) From this box I will run power to a light switch powering 2-4 pod lights in a drop ceiling.
5) From this box I will run power to a 1/2 bathroom light.
I'm not an electrician, but I can tell you this: the expert electricians here will need more information than your providing.
1. What's the size of your panel? (in AMPS)
2. What's the size of the breaker feeding the circuit in question?
3. What is the potential load on this circuit? (Blow dryers, heaters??)
3. What's the size of the wire in this circuit? #14, #12?
4. Is it Copper or Aluminum?
Please post as much information as you can and if possible provide pictures. That will help the experts provide you with the correct information.
It's possible that there may be a better safer alternative to your plan. And if, as you say, some of your circuits are overloaded, you may have bigger problems. Don't take shortcuts. Be safe.