Vim Productivity
We use everything from Emacs to Eclipse to Vim. But I feel that Vim is the best editor ever. But that is just me. I am constantly on the lookout for tools and plugins that make me more productive with Vim.
If you use Rails then you must use the awesome rails.vim. Git integration is just unbelievable with the fugitive plugin. A good programmer should be able to navigate the code regardless of the project he is working on. I found that when diving into new projects, the NERDTree plugin is really helpful. Grep is the swiss army knife of search but ack is even better. Ack helps you search your sub-tree very quickly. Ack has even got an awesome vim plugin to make it easy to search your code while you are working on it. If you know the path to the files but want to quickly open it, there is no better candidate than the Command-T plugin. It emulates the Goto File feature of Textmate. You need to have vim compiled with ruby to use this plugin.
By the way, I use zenburn as my color theme. This website's grey theme is an inspiration from zen burn. What are the plugins that you use with vim? Do let me know.