If the mods will allow, I will post a link.
http://www.pilotinterviews.co.uk
I have been to both Penny and Pete and both are very good. I think Penny's has a slight edge on Pete's when it comes to the actual interview.
She also has a very good success rate (over 90% I believe).
Use the search function here on Pprune and you are sure to find other posts relating to this. (Make sure you search for posts from any date, not just the last month.)
As far as Ace Pilot Technical Interview goes, I think a number of posters have found inaccuracies in this book. Once again, do a search on pprune.
Regards
SW