I've heard, Alertpay is offering attractive referral commissions, and lower fees than paypal to boost up their sales, but I agree with others that it's far better to deal with established and reliable processors rather than dealing with quite new one.
Yep they are all spot on.
You get what you pay for. I was with a company who had been running for a couple of years in the UK and they went down the pan.
Now i am with Worldpay, they are expensive but i get my money on time every time + customers feel safe knowing who they are, this encourages more purchases.