One of the better billing systems out there is WHMCS from a web hosting point of view. Is there a reason that you're going with the particular processing company? Have you shopped around, because $1-$2 is VERY HIGH for budget type hosting. Paying $1-$2 fee for a $5/month account can kill profits quickly. You'd be bettter going through PayPal, paying 5% of the sale and going that route!
My understanding with Google Checkout was that you had to be a Google Member with money etc in their program. You couldn't just accept a credit card payment through Google Checkout (like with PayPal). Has that changed?
As far as PayPal being scummy - I haven't experienced it. They do have some higher rates if you're not processing a lot through them, but about 30% of our clients use PayPal and we've never had an issue.
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