I presently work on this framework. As far as this framework is concerned only the ATG Commerce suite has relevance in the market. Well, you do not need anything else (any other external frameworks) when you use this ATG framework for development. It has it's own app server where you deploy your ATG application. Well, what specific information do you want to know?
SCJP 1.4, SCWCD 1.4 - Hints for you, Certified Scrum Master
Did a rm -R / to find out that I lost my entire Linux installation!