If this a "serious" project, there shouldn't be a second thought to setting up a proper merchant account (authorize.net). Its a very small investment in the realm of things. Especially if you want to appear as "legit" or "professional". If that not an investment you are willing to make yes, I think you can get away with PayPal for the time being. Take a look at Express checkout, it's a lot prettier then some of the previous PP integrations.
