Pre-built Developer VMs (Oracle VirtualBox) from OTN

http://www.oracle.com/technetwork/database/enterprise-edition/databaseappdev-vm-161299.html

This virtual machine contains:

* Oracle Enterprise Linux 5
* Oracle Database 11g Release 2 Enterprise Edition
* Oracle TimesTen In-Memory Database Cache
* Oracle XML DB
* Oracle SQL Developer
* Oracle SQL Developer Data Modeler
* Oracle Application Express 4.0
* Oracle JDeveloper
* Hands-On-Labs (accessed via the Toolbar Menu in Firefox)

Requirements:

* Oracle VM VirtualBox (HERE)
* At least 2GB RAM
* At least 15GB of free space
* 2GHz Processor

There is also Java Development and SOA & BPM Development Pre-built Virtualbox VMs available. (HERE)