Pinky,
I might be wrong but I would have thought that by "light twin" they probably meant something like a Beech Duchess which has very marginal S/E performance. An Aztec would be much better (bigger/faster/sexier)or if you're going to the USA then maybe even a Beech Baron. Any bigger than this and you're looking at Navajo, C310 etc. but these are v.v.expensive, even "over there". But like I said, I might be wrong.