I've never given my props to John Dyer for the FreeTextBox control he created and is giving away; if you want the source code for the 2.0 version, it's very cheap ($50). I've not tried the latest 2.0 release; we're still very happy with the previous version -- we've used it in a few cases where we knew customers would be working with Internet Explorer and it's saved us a lot of time.
The online documentation has really improved since I started messing around with the control; check out this documentation page for a taste of how complete a package John has put together! I may have to dive into the 2.0 version and see exactly what “External JavaScript“ and “Completely recoded as a development platform“ features look like. Also, the latest version advertises wider browser compatibility.
Happy .Netting!