With oddcast running, I see spikes of about 58% CPU usage with 0.53% network useage. Without oddcast, the highest CPU usage I see is around 20% and a network useage of 0.09%.
This is on a slower P3 933Mhz machine running XP Pro. Tried it on the faster 3.2 Ghz P4 machine, without any difference in the network performance. So, it appears to be more network related then machine related.
On either machine, the network print functions still crap out to slower then slow.