Keeping my SA Drivers Licence up-to-date in the UK

I've been living in the UK for 2 years and my SA drivers licence expires in January 2012 (I still have it, I never surrendered it for a UK one....), I would like to keep it up to date in case I ever need to go back home - do I have to go all the way home to renew it or is there a way to renew it here in the UK?

And how long before it expires should I do that?

Many thanks!

There are different driving

There are different driving rules and regulations for different countries. But these should be followed by everyone while driving so that number of accidents will get reduced. Driving license updation rules must
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