Hi the problem isn't with using PayPal. That's fine in my opinion for startin up. Its your asking for people to enter sensitive information on an unencrypted page but also, they can click through to the next screen without entering any details like name, address. Surely this is required info and there should be checks in place to make sure all required fields are entered before heading to payment page.

Don't mean to be hard on you, just want to save you some problems down the road.

Peace.