Rich
I am inclined to agree with others, you've had your heart set on an S2000, you should buy an S2000, why:-
Very challenging to drive, go-kart like chassis, can be geo'd to be less challenging and more progressive, but in all a truly very focused drivers car that requires someone good behind the wheel to get the most out of it. The chassis, engine are all about a challenge and its a truly bespoke car, there is only one model and as the years pass they will only become rarer. Roof down dry motoring, or if your like me, even when its raining gently. I hated driving mine with the roof up to be honest.
Why not to buy one, it might kill you, maybe you'll be slower in it than your Civic due to it being more challenging and this might put a damper on things and when it is wet, cold and raining, well its simply not as fun with the roof up. Your first RWD car, the S2000 does have a reputation.

Though to be honest with the alignment done and a few choice modifications the handling is far more forgiving that the very early cars and as your going newer than 04 and will get the suspension aligned and sorted you should be ok.
The other option!
http://www.pistonheads.com/classifi...m3-2dr-csl-spec-fully-loaded-only-81k/1956106 - Negotiate down to 6-5.5k region, not stellar mileage, but not low either, but the engines in these IF MAINTAINED are pretty bullit proof.
http://www.pistonheads.com/classifi...arbon-sound-system-delivery-available/1970708 - OK far away but looks like a perfect well maintained example with lots of extras.
This would be my choice:-
http://www.pistonheads.com/classifi...ndividual-365bhp-----------------2003/1959087
OK I hate the front bumper, but a CSL front bumper fitted and painted for less than £500 fixes that, the rest of the modifications are pretty good and it looks extremely well looked after with all suspension and brakes changed.
Or this as its newer and less mileage:-
http://www.pistonheads.com/classifi...ries-e46-m3-smg------------------2004/1989617
Or in the best colour, though very far away:-
http://www.pistonheads.com/classifieds/used-cars/bmw/e46-m3-00-06/bmw-m3-m3-coupe-smg-3-3/1951402
Im not sure on red, but this car looks stupidly clean:-
http://forums.m3cutters.co.uk/showthread.php?t=93605
Or in a sickly colour:-
http://www.autotrader.co.uk/classif...rlynew,new/model/m3/price-from/6000?logcode=p
Maybe perfect for you:-
http://www.autotrader.co.uk/classif...id/0e8b3648aa00c58c6deccc4e3c076365?logcode=p
Low mileage and not far away whilsy remaining in budget, offer 7.5k
If still available, a great price:-
http://www.autotrader.co.uk/classif...0/postcode/st87hf/model/m3/make/bmw?logcode=p
Why M3, well though a very nice looking car, it is just another BMW so does not have the rare appeal that the S2000 has. But as a drivers car and that straight 6 powerhouse revving towards 8000rpm, it is hard to beat. The lardyness can easily be cured as 100kg is easily lost with sacrificing creature comforts, its only when you got mad like me and strip out 250kg you loose the creature comforts.
One could argue a safer RWD experience than an S2000, due to the DSC systems on offer etc. and by the fact they have a longer wheelbase making them a little more progressive in let go and you can certainly grab them by the scruff of the neck and drive them hard.
