There's a good German aviation mail order supplies company with all the charts and kit you could want at:
www.friebe.aero
They have an English language link. Some Hungarian pilot friends of mine use this company for all their VFR charts and 'travel kits'
I'm flying to Tempelhof myself next week on the way back to the UK from Gotland in Sweden . . . . just to get this great airport in my logbook before they close it !
