if you can halp it at all, don't withdraw.

when you get to a stage where 2% of your bankroll is a fair bit of money, then you can withdraw 2% at a time. So that would be when your bankroll hits $10,000 or something.

It's good for your poker game if you can see what your making from it, and you keep poker and non-poker as separate as you can. That doesn't mean you can't "reward" yourself by making the odd withdrawal. But then, if you need extrinsic reward i.e. winning isn't enough for you, then poker might not be for you anyway.

Focus on winning, and the money will look after itself