In England, we have a saying "Fur coat and no knickers."
In general, it relates to someone talking the talk but not walking the walk, though this is more directly related to material issues.
We also say "All cheque book and no account" obviously related to finances.
I know, I know...we're very cheeky aren't we ? :P

Soooo...when I was in Dallas last week, I hear they use the phrase "All hat and no cattle."
I love it!!! :P
I want more!!!!

So don't be shy...share some more similar phrases...I've got my notebook at the ready :blink:

CoB