Website Regression Testing Tools

When looking around for website regression test tools I cama cropss these two that look promising:

• Badboy: Are you a web developer or tester? Have you spent hours browsing over and over the same pages to test or correct elusive bugs? Or do you just need an effective yet simple way to capture and replay browser activity?
• Selenium IDE (Plugin for Firefox): records clicks, typing, and other actions to make a test, which you can play back in the browser.