Originally Posted by Arbitrator
Yeah, I guess I should have added a margin. I didn't see the OP's last paragraph.
To the OP: without that margin, the un-floated content in the left column will wrap under the right-hand float if there's enough content in the left column to make it taller than the floated column. That will spoil the two-column effect (assuming that's what you're going for).
Ah, okay now I understand why you swapped them. I'm going to attempt this in the morning. I've been fighting CSS for 5 hours now.