tool box/chest

I'm in the market for a new tool box. I've currently have a 3 piece Craftsman unit but it's about 10 years old, the drawer sliders are bout junk and after a recent break in attempt, my locking mechanisms are bent and messed up.

So I'm looking for a quality tool box. Something with a drawer load capacity around 30-50 lbs, ball bearing sliders and an internal locking mechanism, not the ones where theres a lock bar on the out side of the drawers. I can't afford anything like Snap-on or Mac, just need a quality, durable locking tool box/chest. I know Rural king and Home depot have some decent looking ones, but I dont know of anyone with experience with them.

Anyone have any recommendations.