This topic has been addressed numerous times on here. The best way to search these boards is to go to google and type your search term (ie carrara marble) followed by site:gardenweb.com.

I think it has also been established that none of the quartz marble look-alikes really stand up to true marble. They are each very attractive in their own respect and approximate the look of marble but they are not dead ringers and will not be confused when side to side with real marble.

Here is a thread you might want to look at to get you started. Good luck!

Here is a link that might be useful: Marble owners would you do it again?

Some reading you may find helpful...

http://ths.gardenweb.com/forums/load/kitchbath/msg1122392627438.html?57

http://www.granitegurus.com/2010/05/experiment-of-etching-marble-part-one.html

http://www.granitegurus.com/2010/08/alternate-to-white-marble-in-kitchens.html

We have Vermont Danby marble and love it!