Moving exchange 2000

I currently have an exchange server that is going down about twice a week and have a new server coming in today. I need to move exchange from one server to the other and am trying to find the best way to do this. Our business runs 24 x 7 so I can’t really take it down to copy and transfer backups. I was looking into installing exchange and synchronizing the two servers and moving it that way, but haven’t found any documentation on this. Any Ideas or documents I can get my hands on?

Thanks for the help,

Lee