How does DVT integrate with emacs?
DVT integrates some emacs Verilog-Mode actions (provided that emacs is already configured): indent code, inject/delete/run automation. To activate: go to Window > Customize Perspective, then select the Command Groups Availability tab and in the list on the left select the checkbox Emacs Verilog-Mode. You should then see the emacs buttons in the toolbar.
Eclipse has a built-in emacs keyboard scheme. To activate it, go to Window > Preferences then General > Keys and change the Scheme to Emacs
There is an emacs plugin for Eclipse available at https://sites.google.com/a/mulgasoft.com/www/emacsplus