Updating Ip addresses of windows clustering and sql server on Windows Server 2003 with SAN

disable sql server clustering services ( manual)
disable mstdc servcies ( manual)
disable windows clustering services( automatic)
turn off machines
turn on machines
change ip address of two nodes(public and private)
start one node clustering service
connect windows cluster wiht local connection (.)
update windows cluster's ip address
start another node's clustering service ( automatically sychnchronize clusserting information)
update msdtc service's ip address
update sql server clustering's ip address