Just an update:
I tried the Line voltage with a diagram i saw from howstuffworks.com where all it said was required was a 9v battery and 300 ohm resistor in series, it didn't work.
So I'm gonna follow the website (add a 47mFD capcitor in parrallel) and see what happens, and get it down by a professional electriction (ie just a family member, so no charge 😛 )
I live in Cyprus, land of "do it tommorow", so please bear with me!
Also Supergrom was your Dreamcast PAL?