New road bike

I currently have a trek 1000 and its getting pretty old and I want a new bike. I want to pay about $2000. I am not a serious rider I just ride for fun and exercise. I live in Adelaide.

I went to bicycles express in Adelaide and for about the $2000 range I can get a full carbon azzurri bike for $2000
Uno : Monocoque Carbon
Shimano 105
http://www.azzurribikes.com/product_...ass=001&psn=15

What are the advantages of a carbon bike over alloy because my trek 1000 was alloy?
Do you guys recommend that bike?

FWIW/IMO, the greatest (but, certainly not the only) advantage for the average rider of CF over alloy is bragging rights -- in some circles, THAT is worth something ... not so much in others ... and, who cares what people think about your bike as your are passing them or they are passing you?

If you haven't trashed (or, logged 20,000+ km on it) your TREK and generally like the way your TREK rides but want a "new" bike, then 'I' would recommend you simply buy a new set of shifters, handlebar tape, cables and/or other components ... and, have the wheels serviced. Others do not think it is worth putting (any) money in an "old" bike.

IMO, you CAN mate 10-speed Campagnolo shifters with an 8-or-9-speed Shimano drivetrain without any problem ...

To enhance your ride & to make your bike feel like a new bike, I would recommend you choose a pair of Campagnolo 10-speed Centaur shifters ... a pair of 2009 Centaur shifters will definitely give your bike the latest "look" ...

NB. If past is prologue (and, it has been -- you probably could set a cosmic calendar by Shimano's product release timetable!), then Shimano SHOULD be introducing new 105 & Ultegra shifters before the end of 2009 whose design will echo that of the newest Dura Ace shifters ... so, if you're keen to buy a new bike WITH Shimano components, then you should probably wait until the updated shifters are spec'd on whatever bike you choose.

Now, whether or not an AZZURRI bike is a good bike is for someone else to suggest ... I am sure it is probably a good bike since there are very few bad bikes, now ... and, generally, Shimano components are a very good choice.

And, if you think you hate the way your Trek rides, then the Azzurri might indeed be a good choice for you ...

But, not to bring the state of the World economy into your decision, why spend ~$2000 when less than $500 (even less if you are a wise shopper & do the work yourself) will achieve what you (may) want?

You can always buy a CF Azzurri w/105 components a year from now if the $300-to-$500 component upgrade proves to be unsatisfactory.

NB. Your link was for last year's model (2008) ... and, you should expect about a 20% discount from whatever the retail price was a year ago ... so, if the bike was ~$2500 a twelve months ago, then $2000 is probably what you should expect to pay, now. A year from now, if a 2008 bike were available, the difference in its further discounted price should almost cover a $500 upgrade (i.e., if $2500 was the price a year ago, then I would expect THAT specific 2008 Azzurri Uno bike [if theoretically available as NOS] to be about $1625 twelve months from now).