I guess a major point of RAD is speed. The clue is right there in the name: Rapid Application Development.
So, all other things being equal, how do we go about getting more speed. I don’t mean smashing out a load of garbage or not testing things. 🙂
I mean what things can be used to help productivity? I am going to list a few here.
- MZ Tools. This is simply an awesome product for VBA. Best of all it is free. There is no excuse not to have it. http://www.mztools.com/index.aspx
- Joel : http://www.joelonsoftware.com/articles/fog0000000332.html reading a few of these guides will really help motivate you to make the dept and your working practices better.
I will keep adding to this list, but if anyone knows of any good sources please add a comment and I will add it in.
Rapid Development for Finance 
My biggest annoyance in VBA/FOD development was no diff tool for VBA. This made it difficult to spot the changes that my colleagues had made (normally during early morning support).
SourceTools.xla is very good, but I put together VbaDiff (http://www.technicana.com/products/vbadiff.html) as a ‘one stop’ solution. I think your readers may find it useful.