I've been using Nazscrooge for a while and it worked fine, but I'm wondering if there's one thats similar, but better. 

Nazscrooge is an addon that stores gold away in a lockbox so it's out of your bag, so you're less likely to spend it. could you list any addon that you know of that is like this? I know of NazScrooge and DepositBox!.

I don't know of any better since I wrote NazScrooge ;) but if you have any feature requests don't hesitate to submit a ticket.