Okay tried the cables, the improvement was pretty drastic, to be honest. The Wii channels screen looked nice and sharp as opposed to quite blurry and flickery. Played Prime 3 for an hour, didnt look too bad, some really bad jagginess in spots but at least the picture was sharp enough. Havent tried any VC games with it yet, might give Super Castlevania IV a go tonight.
Metroid Prime 3 is fantastic, VA is wierd but I suppose they were trying to advance the series or something. Samus' friends are shitty. Controls really good. Music made me smile, instantly brought back memories of the other Prime games. Title screen music was awesome