Reply to Lesser of two evils?? Headphones vs PC Speakers

Okay, so I've got a decent set of logitech PC speakers with a sub...and I've also got a really nice set of sony heaphones (over the ear, for DJing).

Given that I have neither the time, nor the money, nor the sound treatment for studio monitors, I'm wondering: Which would YOU use to make beats if these were, essentially your two options?

The PC speakers give me an idea of how it sounds in the entire room. The headphones really let me hear the little nuances of the entire mix.

YOUR THOUGHTS?!