Loaded question.... with lots of different answers. It depends on what you mean by load balancing. Outbound traffic is pretty easy--there are several schemes that will get you there with or without bgp, including using an igp, such as eigrp (or ospf, or isis, or even rip if you _really_ wanted to do that). Inbound is another problem altogether, over which you don't have a ton of control, though there are some things you can do....
Russ
