If you enjoy using pss and belong to the cult of Vi, you may like the the pss.vim plugin by Bernhard Leiner. It's a very simple-to-use and functional plugin for running pss searches from inside Vim and showing the results in the Quickfix window. If you find yourself running greps a lot from inside Vi, and/or using plugins like EasyGrep, give pss.vim a try - it's a much better searching experience for source code.