The Teradata Express program offers customers a free evaluation version of the Teradata database as a download from Teradata.com.  While the Express edition is not licensed for production usage and is not officially supported, this is a fully functional Teradata database that is a great tool for developers and testers working on their Teradata projects or other who want hands-on learning with Teradata. 

Cloud Computing is a computing service provisioning and delivery model in which users get access to dynamically scalable computing capacity over the network in a pay-as-you-use payment scheme. While its attractiveness may differ depending on whom you've talked to, its service-oriented nature gives users two important benefits: ease of application deployment (someone else's hard works laying down the hardware and software foundation) and on-demand access anytime from anywhere. These characterstics make Cloud Computing ideally suited for developers who want to quickly try something out in an isolated "good" environment without the overhead of system setup or the capital expenses of paying for systems they no longer need after they are done.