Idwar i believe u are wrong its not the taiwaness paying the US congressman but actually the US arms maker....... Taiwan to the armsmaker is a cash cow coz she is always in need of newer wpn tech to counter the chinese threat. And whereelse can she get it but from America. Juz yesterday in the news, taiwan was buying new wpns from america again worth billions of dollars.
But seriously, the reason why america is aiding taiwan is beacause of the island's usefullness to restrict the rising power of China(the awakening Dragon). By not allowing unification now, taiwan will always be a thorn to china and that shld there come to an impasse between USA and CHINA, taiwan could always be used as a stepping board to attack china.
I believe that China would not go to war unless the Taiwan tries to gain independence..... and i noe that Chen shui bian would not go for independence as he is wily enuff to noe that it is a very dangerous step and it means the end of the road for him shld he do that as both USA and China would work together to remove him.
PS: Blueray btw ur idea would not work coz if china does that u will see another Great Depression

. Coz the economy of the world is too intertwined and link. By removing the most important link in global trade and production and finance, USA, the whole system we noe would collapse.