I've traveled a fair bit <cough> and I've never, ever been asked at the border to prove that I have enough money, even when I was a suspicious longhaired backpacker Interrailing around (pre-Schengen) Europe. For student visas in particular, the vetting has already been done in the application phase and I can't imagine them kicking you out at the border.

In the unlikely event that you are asked (as a tourist), just showing a credit card is usually sufficient, as nobody carries large wads of cash around these days.