HIGH AVAILABILITY / CLUSTERING

We need to offer 99,8% of availability on our service. We have 5 Windows 2000 servers working with IBM MQSERIES, SQL 2000, MTS/COM+, IIS, etc. We have a storage from EMC2 also. We need to have another site in other place linked by a high-speed network with other 5 servers clustered. Is it possibly to have active-active clustering and how should be the topology and main configuration of those sites with Windows 2000 Server MSCS?