PCIE Power splitters for SLI?

I have a power supply of (I think) sufficient wattage (750) but it only has two 6pin PCI power connectors for the GPUs. Is there something like a 6 pin power splitter that I could used to have one power connector split and plugged into both power plugs on a graphics card so I can SLI two GTX 275s?

Is there a reason not to do it?

If I do use such a splitter, would it be better to use one power cable per GPU or plug one end of the split into each GPU so both cards?

Yeah likely doesn't start but you could short something out.

Just use the molex to 6 pin adpoters if you have enough molex.

I will have extra molex connectors. Thanks.

I have a good 750W power supply that is overkill in my current machine that has a 9800 GTX+ and can not SLI. I was thinking of getting it a new 500W and moving the 750 to a new I7 with one 275 then adding a second 275 later. Reduce the inital cost and spread the expenses out to make it more spouse-palatable.

Thanks, fixed.