Where Do You Go After Visual Basic?

Josh Berkus asks: "I am an expert Visual Basic programmer who is looking to adopt a different, cross-platform language with a Linux-compatible IDE. After some research, the main offerings are theKompany's BlackAdder, borland's Kylix, and ActiveState's Komodo. What are your opinions about the languages and IDEs offered in these products? Has anyone switched to one of these from VB, and what were your experiences?"

"BlackAdder supports a Python-Qt synthesis that is very attractive as both languages have Open Source verisons. Their IDE costs only $250, which is doubly attractive.

Kylix is apparently a full featured IDE based on Borland's many years of experience with Delphi. However, one has to buy both Kylix ($199) and Delphi 6 ($999) and the language is proprietary.

Komodo suffers from the lack of a widget/forms set (as far as I can tell). However, their IDE supports 3 languages right now and will support more in the future. The $295 per user price is also attractive, as is the large knowledge base of advice and code snippets."

Are there other decent RAD packages out there for Unix systems or is this pretty much the cream of the crop?