rack case with wheels?

I currently have an SKB roll case, which is very cool.

I'm looking for a two space rack case with handle/wheels, any suggestions?

I've tried out the Warwick Rackbags with handle/wheels, and while the rack case itself is fine the handle / wheels are of very poor quality. I've had three now where either the handle came off with great ease or the wheels came off (the wheel mountings are not sturdy enough for use on a sidewalk).

 

thanks for the pointer, but the smallest they do is a four space roller case.

Anyone else got any suggestions?