whats wrong with silver? ive always thought it to be one of the best allround colours for cars. looks sex with white wheels too.
if i ever get a respray i would think long and hard about doing silver with a ice blue pearl, or the yellowey-green colour that alot of car makers are using now. (my mums falcon is this colour).
i agree that its good to be different and not copy, but dont want to be too flashy.
out of the three colours, the gtr purple would look good, but be a bastard to keep clean.