using bing for clickbank

So, I am using bing to promote some clickbank products. I really like the fact that I was able to leverage the original 50 dollar voucher that they gave me and basically self-perpetuate my ads. Currently, I'm scaling up a bit to try to gain some quick cash to fund traffic for my websites but I want to find other PPC networks that let you link directly to affiliate links like bing/yahoo does. Ones that offer vouchers would be a plus as well. Anyone have any ideas?

Also, just one question, does using multiple accounts with bing ads cause problems? I mean in theory you could just sign up for infinite 50 dollar vouchers if you have infinite emails. I'm sure they use some measure against this but I still have to ask.