Funny you should say that Vanilla - I have seen the use of 'whilst' lambasted on threads on MN as something Very Wanky.
There is a place for while, and one for whilst. If, like me, you live in the early nineteenth century, it is second nature.
Let me persuade you to follow my example, and take a turn about the room - I assure you it is very refreshing after sitting so long in one attitude.