So if I have two 512 adsl lines connected and setup using the load balancer, I could in theory get download speeds of 1024 using a download manager.
Not sure why you're doubling that, but yes - each individual TCP connection (SYN thru FIN-ACK) will be assigned to the "next" WAN line. So you could theoretically get the aggregate speed of all the lines, provided both your client and server a) support that speed and b) support threading. In reality, I've seen a lot of sites limited to 5Mb/s or less, so only under something like Bittorrent are you going to *really* going to be able to fully exercise more than 1 or 2 WAN links. RB
