i have dated people i've worked with in the past. it was a while back, and there was a different attitude towards it, but not one seemed to care. i was even a superior to both, (i couldn't hire or fire them though).
now that i have my own office, i would never, ever get involved with it. my employees are literally all women, and i wouldn't want them in any way, shape or form to fell uncomfortable, and ultimately disrupt the good thing we have going on here.