Netware 6.5 SP7

We currently have a bottleneck with traffic going to/from the server. I was thinking about installing 2 NIC's in the server and wanted get your opinion as to whether you think this is a good solution.

1) What is the difference in Load Balancing and Teaming? We do not want to divide the network into two smaller networks, we want to keep it as one network as it is now.

2) What is ISCSI Teaming, and is that only for Clustering?