Sublime Text + Go Sublime Review

Sublime Text uses TextMate's syntax declaration files to support new languages, has all its menus and keybindings generated from JSON files, and can be scripted to add new features using Python.

If Sublime Text doesn't support a desired language or feature, it's usually not long before someone implements it themselves - examples include the plugin package manager and the 'open in browser' command.

Sublime Text has a minimap on the side that provides a top-down view of the file and keyboard shortcuts for most actions. It's also supports a large number of languages and general text editing features out of the box.

Does not drown you in keyboard shortcuts or unintuitive concepts as you start using it, but high-level functionality can still be easily accessed when the need for it arises.

Need to buy only once for ALL your computers with ALL OS, without expiration date, and can be used for business.
Only major upgrades need to be paid again.

Looks consistently the same across Windows, OS X and Linux.

Sublime Text, while being lighter-weight than an IDE, still supports many IDE features.

• Text from the current file is used to provide autocomplete
• Project Support (folder browsing, scoped history, build-system declarations)
• Refactoring support is emulated through multi-select, project-wide find & replace, and regular expression search
• Syntax-aware selection and GoTo for quickly jumping to locations in the project
• Snippets & Macros
• A Python console for everything else