Devanshu_Acharya,
That's why these forums are so good. Never in a thousand years would I have just "known" about a device like an N-MOSFET. I do have a question, though - if you can answer it... how does this device work without having ground wired into it as a reference? I trust it DOES work, but I'm curious. Thank you very much for your input and for the very easy-to-understand schematic!