L.L.
Oh, the bunk bed drama. :) You ought to look up some of my recent posts. I did discover a way to make ours safe, I'll just say. :)
We bought a "staircase" bunkbed from BunkBedKing, and I am thrilled with it. It's as solid as a rock, it's beautiful, and for less than 20 dollars we were able to fashion a locking swing gate to block the staircase entrance from our youngest child. My older child will be seven and understands bunk bed safety...never standing on the bed, etc. I am not concerned that she will be injured...my concern was for my toddler, but as I said, that's all worked out. :)
It was a little pricey...about 550 (free shipping!) but I think it's worth it because the quality is SOO much better than the $200 ones you see at WalMart, etc, and this bed had only good reviews. I also love the drawers in the stairs...they are sturdy and hold quite a bit since they are deep.