Re: Oracle Universal Installer...
If you want to look at an enterprise ADF application, look at https://support.oracle.com - Oracle's customer support site (valid CSI needed to logon).
This used to be Flash based. The ADF version is a lot slicker.
As for blaming SQL-Developer as a "bloated slowcoach" - how about backing that up with evidence? Am a CLI fan myself and prefer SQL-Plus. Have used SQL-Developer (and have it installed), and find it no different that other SQL GUI tools (like TOAD, Tora, etc).