[Tfug] composite to vga adapter or something else ...?

[Nathan England]

I have a laptop, an LCD screen and a gamecube that only has composite output.

I want to play my gamecube. Either on my laptop, or on the LCD screen. How do 
I make this work? I shouldn't need to say my laptop only runs linux and 
windows is not an option, but I say it anyway.  I have tried a cheapo device 
to copy composite inputs to the computer but it was software only and had such 
a bad delay I couldn't play the gamecube on it.

Any ideas how to make this work?