I think my favourite would have to be the Austin Healey 3000. At one point was thinking about buying a Haldane but really too much money when your'e not driving the real McCoy. Most of them go for 20k upwards.
This looks like a good example.
http://www.sovereigncarsales.co.uk/C..._gridpos2.aspx
Also like the Triumph TR4 and Stag. Also not forgetting the MG TC.