I used Osram Night Racer on my FireBlade and they seemed a bit better than the standard bulbs on both main and high beams.
In my experience, stay away from Philips bulbs, they blow quicker than a $10 hooker. Found this to be the case on 2 bikes and 2 cars, so it wasn't a vehicle-specific issue.
The ST11 I have seems to use 'different' H4 bulbs to the normal ones - the locator pins are in different positions. Don't be put off though, one of the locators is pretty much in the right place, I just bent the other 2 out of the way. It's perfectly secure as it's held in by the wire spring securely.
Again I have looked in to lighting upgrades for my 11, I've decided to go for HID - 35w, 4300k, AC. Not ordered a kit yet, maybe next month....