Thanks. I do use ctrl+left/right all the time, along with their friends ctrl+shift+left/right. The Home key is also handy since it toggles between the beginning of the line and the first non-whitespace character on the line.

I still like TabSanity, though. Perhaps it's because I use tabs in all my own projects and I like the way the left-right keys move one indent at a time. So having those keys work the same way with space indentation has a certain comfort to it.