What Front-End you suggest ?

Dear friends,

I need to development one system in native Linux, Language and DataBase, today I use PostgreSQL with Delphi 2005 in Windows 2005 Servers, and I need to know what language will use to do this ?

That you suggest ?

This Langage work good in what Linux SO ?

This language have developmente ambient IDE (like Delphi 2005) ?

Where may download this compiler to test ?

Tks for help.

Gerson