Given your experience, I'm sure you will have no problems at all. The PPL exams aren't hard.
Are you going for an ATPL(A) or (H)? I don't really know about the latter, but if it's the fixed wing then I'd recommend the
PPL Confuser - a search here will show you how highly most student PPL(A)s rate it. A quick run through that will give you a feel for the exams, and highlight any areas you need to brush up on. After that a quick read through the Trevor Thom or Jeremy Pratt series of books will give you all the information you need. There are plenty of copies around, and you see second hand sets advertised frequently - just make sure they're up to date.
I think that the PPL(H) shares some of the exams with the PPL(A), so the confuser may still be useful.
You're welcome to borrow my copy of the Confuser - I've finished the exams now - but I wouldn't mind it back once you're done. Let me know an address
