this brings up an interesting topic. Money as we know is stored in our memory, and sadly on the server, lol. Also, every slot in your inventory, did u ever notice if u move or switch them around, they will go back to their original positions once inv. is closed and reopened. That shows it's server side, but allowing us to move them, and having them be reset, also shows it's client side. Chances are, there is a memory space for every slot in our inventory, once it's found we should be able to change it.
Now, i'm sure the poster of this is happy atm, but here's the thing. Finding an inv. slot in memory will be hard! Money we can see what we have, and search for that number within CO. Well, u can't search for a DB or Met or w/e in memory. Each item has a unique ID number, and chances are we won't figure out what it is.
If we were to find it, and if we were to know the DB code (which i think somebody does know) then yes, we should be able to insert a DB into inv. client side only. But, when inv. is closed, and opened again, it will be gone, because it will be server checked.
I don't know if we could put it into a trade window either.....if possible it would just be another variation of art money hacking with accs. Hope this helps, +k if you understand something better.