Thank you very much for your replies - they were very helpful!
I've found one which I think would be okay for me - here is the advert:
1999 T Reg ALFA ROMEO 156 2.4 JTD
4 Doors, Manual, Saloon, 3 owners from new, almost new tyres all round, Diesel, 80,444 miles, Metallic SILVER, MOT-14-09-2008. ABS, Adjustable seats, Adjustable steering column/wheel, Climate Control, Driver airbag, Electric mirrors, Electric windows, Foglights, Head restraints, Headlight washers, Lumbar support, Immobiliser, Passenger airbag, Power assisted steering, Rear armrest, Radio/Cassette, Side airbags, Rear headrests, Air conditioning, Alloy wheels, Anti theft system, Central locking, Child locks, Cloth upholstery, Colour coding - Body, Colour coding - Interior, Front armrest, Heated screen, Metallic paintwork, Sports seats, Tinted glass, Part Service History. Insurance Group:14, For More Information go to www.elitemotorcompany.com..Open
Mon-Sat and Sunday by appointment..IF YOU HAVE GPS-SAT-NAV WE ARE AT G674HN No56 Elite Motor Company 01236 872555 £2,495
No Tax, 28days garage warranty,Regarding service, there is service history up until around 30-45k miles. He is unsure whether the cambelt has been changed recently, and so has advised will decrease asking amount by £150 to cover this being done (initially he advised he could make the relevant calls to check...and then offered to reduce instead - must be lazy??
Any feedback on this would be most helpful ie. anything else I can get him to throw in, opinions regarding asking price for what it is,what you would expect to have for that price etc etc :-)
If all is well, I'd like to leave within the next couple of hours to have a look at it (it's about 60miles away..), so I look forward to people's views!