Hey welcome to the forum!
I'm new too!
thanks for asking all those questions! saves me asking them again!
i'm thinking a turbo would be nice, but i'm not exactly mechanically minded, are there places that can do converts for you??
When you say you want to mod the standard engine, do you mean the 1.1? coz mine so far has new plugs and leads, Janspeed full system, K&N induction kit, with multiple feed, and a nearly a chip (havn't got round to buying it yet) hehe.
GoGoCinquecento!