Veloce shifters $140 ( better deals if you shop.At one point I could get them for $115 with Nasbar 10% discount
)
Veloce Rear Derailleur $69
Veloce front derailleur $30 (Centaur is even available in special compact crank configuration for $40)
Veloce 10s cassette $75 (or use conversion cassette if you keep shimano wheel)
Campy Rear wheel (nice handbuilt one with OCR rim at oddsandendos for $175 shipped )
Use whatever crankset you want with above parts.
Maybe you wouldn't put Veloce on your dream bike.....but it really seems hard to beat for your everyday workhorse bike.
Ultegra 10s and Veloce 10s cassettes are the same price, but the Veloce cassette comes in Individual cogs (custom cassettes are therefore easy with the Veloce) and there is an option for a 29T with the Campy whereas Shimano only comes 27T in 10s.