Internet Sharing Question...

Hi bodies

i was thought that if i have 2 or more internet connection on my eths and i want to allocate each interfaces to a group of users for example some other interfaces for sharing the internet without interrupting (i mean each internet eth enable just for its related users or interfaces )how can i do it?

tnx 4 ur time

This fits to your needs, i think
http://wiki.mikrotik.com/wiki/Load_Balancing_over_Multiple_Gateways

tnx dear that link clear the subject for me