Software to throttle file transfer speed on network?

[ian1ian1]

I'm wondering if anyone knows of an application that can limit file transfer speeds from my Mac to our network computer. We are photographers and oftentimes I need to transfer large projects 200+gigs to the network computer. The Mac defaults the transfer speed at the fastest rate. When I transfer though it eats up ALL of the bandwidth in the office so none of the other computers connected to the network can work. Meaning that it slows everyone down so much that they are rendered useless.

All computers are connected to a central server running Microsoft (gasp) Storage Server 2003.

Thank you.