Some interesting comments. Just to add a few points.
There was a 16v 1.8 version of the coupe, only available in europe, but if you were hell bent on getting one, its 130bhp and can be available in RHD although most are left hookers.
Its the general opinion of the coupe engines that this is the reliability scale.
16v non turbo - how deep are your pockets?
16v turbo - Hope you love visiting garages. Maintainance will be expensive
20v turbo - Better than the 16v engines and if you keep on top of it, will do you proud.
20v non turbo - Best engine of the lot. Most reliable and fewest bills if you buy a well maintained one.
The potential for modifying isnt there with the 20v n/a (well not on the engine side

) but if you cant afford the stnd turbo running costs, its not an option for you anyways.
Things to remember are that wishbones need replaced 20-30k, oil change preferably every 6k and cambelt change is a bugger so its better to take to a specialist.
Also think long and hard before having the coupe as your main car. Personally, i would have the cheapest crappiest run around aswell, to keep the mileage off the coupe and as a back up when the coupe breaks.
Ross