Well, I'm thinking 9U is too big so I thought I was right on with that one :-)

Sorry. not totally understanding what you're saying about RackBrute. It does seem to have an over-large PSU but surely it's only units next to it which might have depth probs. not units in the rest of the rack?

The Pitts looks great but is totally out of the ballpark :-(

I'm just trying to pull together the confusing amount of info about cases - except get bigger than you think you'll need :-) - to find something that looks ok, does the job and still leaves me with enough £££ to buy some modules :-)