You're right, its as simple as it gets. I just thought you might have taken this one further before. The 50Ω resistors are just the drop for the LEDs, so those are irrelevant for me at this point. I would just have to swap out the 5K resistor with something like a 10K pot to adjust sensitivity. The 2N3904's were my concern. I just wasn't sure what I would swap those out with. I can play with it though. That is why they make breadboards.
This will be running a small motor, a few high intensity LEDs, and a couple of other small parts. I've got that piece running fine already. I just needed something to help out with switching.
Thank you very much for helping me out with this. Its really appreciated.