I know that we have all developed little hacks in matlab to deal with structured grids, in particular, roms output. I have tried to make a few very simple, minimalist functions that do the things I find myself doing all the time. The goal is to have each function be simple enough that you do not have to use 'help' each time you want to use these tools -- they should be very basic commands that you can link together to get where you want to go, much like the basic unix commands. Take a look:
http://pong.tamu.edu/~rob/strugo
Please feel free to send comments, improvements, or additions.