Good VFR Charts for West Africa ?

[ooizcalling]

Hi all !
Can anyone direct me to a good source of supply for good VFR charts 1:500,000 or 1:Million. covering West Africa. I'm presently interested in Gabon , but other areas also interest me.
The general european pilot supplies stores have little call for this, so they don't stock them. I prefer a supplier who can mail them to me, or an on-line store etc.
Any Idea's
Thanks, in nail bitting anticipation,

[Gerund]

What you're after are the ONC charts for the region, 1:1,000,000

Great charts and world coverage; standard issue for the in-country aviator.

Available from all good chart stockists but you can also buy here:
http://www.transair.co.uk/product4.asp?SID=2&Product_ID=1385

Search for, and download, the parameters on which the ONC charts are constructed, eg Grid Altitudes give no terrain clearance. Any problems, let me know and I will email you the pdf file.