I had a similar noise to the one described on my VTR... After having a new gearbox, new clutch, new wheel bearings and driveshafts the noise did go...the garage and i believe it was clutch related though. My VTR is a piece of s**t though...luckily i had 3months warrenty from the dealer i purchased it from and he forked out the £3k. :)
Mike Armstrong, June 2008