What engine?

Hi
I am new to all of this so please forgive me.

If i was to convert an mk1 what is the engine that everyone wants or talks about.

I hear you can fit g60, vr6, 1.8t can you fit any more of the more modern 2.0 fsi turbo's in there?

Has anyone got any more details on power to weight, bhp and torque graphs for these?

also which engine would be the cheapest and easiest to do? not sure if i would attempt to this myself so i would take it to a company who can.

Any help would be great!

Have you seen the "engine conversions" article?

Bluemotion ftw