I loved Rally - now I'm using Jira and I really miss Rally.
I love KanbanFlow for my personal Kanban page.
I use Visual Paradigm for all my documentation - this allows me to keep my architecture and documentation agile. UML docs of the ever changing system with prose to support it rather than prose documents with UML within. You can then publish the diagrams and all their metadata as a website allowing the documentation to be continually evolving.
TeamCity for automated build.