To all of you that claimed otherwise, this can be done.
In fact quite easily (once one knows how)
Using Xincom XC-DPG502 Twin WAN Router (in UK it is less than £200)
It does load balance "out" connections & even with a little trick (using
Multiple DMZ) allows "in" access as if there was nothing there & you were
connecting straight to BM public interface (means BM does all the NAT etc)
Also connections "out" are having BM public IP as source (what I really
Anybody needs help please feel free to contact me
Other nearest solution was either Firebrick for over £500 or Xrio Q-Balancer
1510 for over £1200
Probably NETWalker Agile 200 High Performance Load Balancer
would do the same job
OK the cost (apart from money) is 3 public IP (load balancer LAN + WAN and
ADSL router LAN) on one connection & 2 public IP (load balancer WAN and ADSL
router LAN) just to connect
But after that is freedom....