Mod PCI-e connectors to increase wattage output?

My PSU has two 6-pin PCI-e +12 volt connectors. #1 is 18 amps and #2 is 20 amps. The problem is my 8800 GT card needs 26 amps minimum. So I'm wondering if it's possible, not to mention wise, to change or combine one or more of the terminal leads to increase the wattage output in a single connector?

I know this is a crazy idea and I should just buy another PSU, it just seems to me that since the PSU puts out 38 watts total it *should* be theoretically possible to do. Anyone have any thoughts on this, and if so how to go about it?

Thanks