[Linux-HA] Balance and HA

[DeMarchi]

Can anybody tell me how (just give directions) to balance two outgoing 
internet connections (balancing) the traffic? Also,  in case one fails, 
all the traffic will go through the remaining?

Seems off topic but it is HA and I would like to use heartbeat, also.

Would have a T1 and an ADSL and share both with the intranet. If any 
goes down I´d still have the other one running.
Thanks.