2x SDSL + Load sharing

[Josh Finlay]

Hi,

I have a setup that has 2 (two) 512/512kbps SDSL lines
and around 20 computers on the network

I am setting up PF/ALTQ to load share between the two
I am assuming I can do a round-robin NAT with PF?
and when specifying the available bandwidth for ALTQ would I be able to just 
say 1M up 1M down and have them all share both lines, or would I need to 
specify the queues for each SDSL line seperately as 512/512 and put say 10 
machines sharing one connection and 10 the other?

Regards,

Josh Finlay.