Next Generation Functional Testing Tool
TestWise 4's unique "run selected test steps against the current browser" feature boosts efficiency greatly.
Check out Zhimin Zhan's eBook: Practical Web Test Automation
If you like TestWise for more frameworks such as Cucumber and Watir but lack attach-execution-to-browser, try TestWise 5.
One click Ruby Windows installer, just single installation to enable you running automated acceptance tests from command line, easy integration with your continuous build server. (Prev major versions: 7.2.4, 7.1.0, 6.5.1)
RubyShell is also a one-click Ruby on Rails installer for Windows.