The new DesignBuilder SBEM module has approval from UK Government and can be downloaded here. 

The software is free to download and use and can be considered as a high productivity replacement for the iSBEM program.

DesignBuilder Certification are offering training courses in the Part-L2 and EPC calculations as part of the CIBSE Competent Person scheme starting 30-31 Jan 08.

More on DesignBuilder SBEM 

DesignBuilder v.1.4 is has many new features and improvements including:  EnergyPlus version 2.1, SBEM module for UK Part-L2 and EPCs, Combined constructions simplify construction definition, New Compact HVAC options, more Cooling design summary results and options.

Full revision history lists all the changes.

Download v.1.4

Note: Version 1 license holders can upgrade free to v.1.4.

DesignBuilder CFD is a new easy-to-use tool for predicting airflow and temperature distribution in and around buildings.

It uses the same methods as the general purpose pure CFD packages, but at a fraction of the cost and without the need for any specialist knowledge.

The CFD module will be first released in beta test form May-June 08 . A full implementation, including links to EnergyPlus will be available with the release of v.2.0.

More on DesignBuilder CFD