Hey, I'm pretty good with all of this stuff... I'm just a bit confused on how to start this one. I mean, usually you begin by figuring out where the reference node is... But I'm not sure what to use as my reference node/ground node... In all the other problems I've done, it's been pretty obvious. I usually get circuits that are organized top to bottom, where I've got a bunch of resistors on the top of a ladder-like chain of components. So usually the bottom portion of the circuit is the ground node. However, that's obviously not the case with this one. The voltage source is in upside-downish. And the current sources are going opposite of the way they seem like they should. Would that mean that the top area of the circuit would be grounded? I'm awfully confused. Any ideas on this one?