Using WorldPay with Appointments+

Hello

I have configured A+ and it is working ok .. but integration seems to be limited to PayPal. Is there any way in which I can use WorldPay? PayPal is ok, but they charge a lot, and keep your money in PayPal until you request it.
I see from a previous thread that one could integrate MarketShare but is Worldpay supported and can I go straight to the payment without a basket, product creation etc.
Thanks for any help you provide.
Jay