I created a site in asp 2-3 years ago, (Paypal Standard) and am planning to convert it to php when i get the time.
I will probably use this as my first Payments Pro site.
Probably a month away, but i'll be grateful if we can talk through things.
I may also (finally) get around to having a go at coding ecart for google if I can !
(Do you know if Paypal Pro has a UK sandbox yet ?, I remember it didn't when i looked at this a while ago)