If your thinking that new an ex-demo/pre registered would be a good choice.
How about this one...
156 2.0 JTS Veloce 2 4dr, Petrol, MANUAL - 5 SPEED, Price: £15,995
Colour: METALLIC BLUE GABBIANO
Options: 16" Selespeed design alloy wheels, Alarm, Bose sound system, Driver/front passenger airbag, Dual climate control air conditioning system, Front fog lights, Metallic - Gabbiano blue, Momo leather - Natural, Radio controls on steering wheel, Radio/single CD player
I bought mine in February 2002 from an Alfa main dealer, it was 2 months old registered December 2001. It is actualy an EU import that the dealer had for their 2002 demo car but registered it in 2001 to meat their sales targets.
I paid £14000 for it plus another £400 for the spoiler. I got 2 years Alfa warranty which will be followed by 2 years dealer warranty.
Motorpoint also had some of the last 2.0TS Veloce 2002 models in with delivery milage for £13999, they have all gone now though.
Keep looking, there are deals to be had.