You want a post 2006 facelift car, which is easy for your budget. The suspension was tweaked, soundproofing was improved and the 2.0 got a 6 speed gearbox.
I wouldn't look at anything other than a Sport - the spec is well worth it, all 2.0 Sports have cruise, climate control, xenons, auto lights, auto wipers. Leather was an option, but became standard on 58 plate cars onwards, these also have piano black trim and and MP3 compatible CD changer and aux port. You can add these to the earlier cars with something like an XCarLink.
The saloon and hatch are quite a bit different in terms of bodywork - even all the front end panels and bumpers are different. Sport models have different bumpers and grille, but some of the later models like the Takara also got the Sport parts.
Pre-facelift Sport Hatch: http://images04.olx.co.uk/ui/1/03/79/1999479_1.jpeg
Facelift Sport Hatch: https://encrypted-tbn3.gstatic.com/...0cjvgDe1PFfLOWGW2tKTQuwUrbwFJqs_Xat4gZcNsrZNI
Pre-Facelift Sport Saloon: http://parkers.bauercdn.com/Images/Cache/External/325x0/USEDCFS-440084531884206.0.jpg
Facelift Sport Saloon: http://images.motoring.co.uk/images...-bose-6a2ea9f807fd47d73f781920a6435020-m2.jpg
Thank-you blueboy, that really helps. So I should be looking for a Sport with rectangular front fogs then as that'll be the facelift, right?
E.g. this one, just a shame it's 300 miles away, I really need to find one a bit closer:
http://www.autotrader.co.uk/classif...ode/ab424tg/page/4/quicksearch/true?logcode=p
This one isn't quite so far away:
http://www.autotrader.co.uk/classif...radius/1501/page/8/postcode/ab424tg?logcode=p
Think it might be a case of just waiting for the right one to appear a bit closer to home though so I can at least go and see it without needing to take an entire day off in the process.
I looked at saloons when I looked at 3's as I prefer them.
The only downside if you do look for saloons OP is they are rarer than the hatchbacks (at least in my area anyway)
I actually don't mind the look of the hatchback and I think I prefer it overall but you're right, there are even fewer saloon Sports than hatches.
Those are cruise control
I'll +1 everything that blueboy said, you definitely want a facelift and for that budget you should achieve one, I sold my 2006 2L Sport (facelift) with 49k on it for £4200, so just keep hunting, don't rule out distance, and see what comes up.
That's reassuring thanks, really liking the look of these now and seems like one would be a substantial upgrade over my current car. What was fuel economy like when you had one? Any known/common issues or problems to keep in mind or look out for? Quite like the idea of cruise control, never driven a car with it before!
Still need to run some insurance quotes to find out what the damage will be there, although hopefully with my age and driving experience it shouldn't be too much of an increase.