To be honest I'm a little dismayed that nobody has replied to the questions I asked. This thread has been viewed approximately 75 times since then and I'm pretty sure there would have been people who could have added something to the discussion.
Therefore I've decided to buy the following:
ICAO 1:500,000 VFR Chart
Scale 1:500,000 and 1:1000,000
Compass Dividers
CRP-5 Flight Computer
5" PP-2 Commercial Square Protractor
AFE-AVP-1 All In One Plotter
Extra Fine, Fine and Medium perm and non-perm markers
Kneeboard with a light attached (any suggestions?)
Professional Logbook
Manuals (still unsure)
PPL Confuser
IMC Confuser
However I'm still unsure if I've got everything.
Yet another shop:
www.pooleys.co.uk