It's worth keeping an eye on the clearance bikes at various shops. I got the following from Planet X for £1000 last month:
Sab prestige full carbon Italian made frame and fork
Planet X 52mm carbon clinchers (alloy with carbon fairings)
Vittoria Rubino Pro tyres
FSA gossamer compact chainset and FSA headset
Sram Force front and rear mechs, Sram rival double tap shifters, sram rear cassette and chain
Planet X super light forged calipers (I sold these for £34 and upgraded to sram force for £61 second hand, so cost me £27 to upgrade)
Eddie Mercx finishing kit (saddle, bars, stem and tape)
Planet X pro carbon bottle cages
To buy separately from Planet X the frame and wheels alone are about £1k so it's definitely worth hanging on for a reduced bike.