Find Text plugin allows to perform simple solution-wide text search in ReSharper style. When invoked, plugin asks for text string and performs search in all files in currently opened solution. You can specify case-sensitive or case-insensitive search.
When plugin finishes searching it presents results of the search in ReSharper's Find Results View, where you can browse, preview, group and use all other features of this tool window.
Advanced searches like Regular Expressions search are not supported.
You can download sources if you want to look at implementation, or you can download setup files if you want to use it right away.