[Zope] Migrating standalonge applications to Zope

First of all I'll like to thank you all for all the info I got from this list in the past two months. I'm currently migrating a lot of standalone software I had made to Java and I REALLY don't think the complications that the language dictate help me at all. Thanks to this experience I resume my evaluation of Zope and I found out that this enviroment may be better for me to use. I realise that in Java I spend three to five times more effort that I did in Visual Basic (for example). Does anybody migrate/rewrite/build any "classical standalone" application in Zope (accounting, payroll, data acquisition application, etc)? How much effort did this took? I appreciate any comments. Thanks in advance, Nico.- PS: Sorry about my english!