Thank you everyone for the feedback...
Having spoken to the boss (wife) I think I will go pay as you go. So I will spend a little more but i agree it safer and more flexible should I wish to change schools etc. I also agee with the right instructor. It appear to me that mot of the instuctors at cabair are all on 2 year hour building deals all itching to get to the commercial/airline stuff. Think I will take the odd hour with the other schools on site and see how I get on. Also talking myself out of doing my PPL on a 152 and then doing a PA28 check out. Really enjoyes flying the PA although will be doing 5-6 hours over the next 2 month with a pal who is hour building in a 152 (AAC pilot that needs to keep PPL(A) should be fun watching him get a nose bleed above 100ft). Rochester/redhill and stapleford are possibilites (in that order). Hopefully I decide soon and start ASAP. If anyone here is currently training PPL or about to start at biggin would be great to hear from you and or have a beer/swap nte on who you may train with or what instructors are rated on the field.
As I expected a great response from this site, I hope to be able to conrtbute for many years....