Time stretch dialog
This time-stretch tool is really important. Liquid time scaling capabilities is what caused a lot of people to switch from older cubase SX to SX3.
Anyway, I'm just a hobbyist so I don't need too tough tools (yet), but I would really like to see a dialog for timestretching like so:
Current BPM: [x]
Target BPM: [y]
You could easily match different tempo tracks without manually searching and stretching.