How to run two strips in parallel

Thanks for all the feedback, guys! I have read the tutorials you sent my way and revised my drawing accordingly:

Does that look about right now? I have included the transistors and capacitors in there as well. Do you think it is okay to just run one 10Gauge power cable alongside my strip and the just splice in as shown? Otherwise I'm going to have to run a ton of cable if I always need to go directly back to the Power Source.

Thanks!