Normal LCD? You can get a 74cm of any of the top brands in that price range, ie, Samsung or LG etc. Try Game/Makro.
All depends what he's going to use it for
Purely watching DSTV and maybe the occasional DVD... Nothing intensive like playing console games etc. and he doesn't have HD DSTV so that would be a bit pointless.
He will also need a TV license if buying new, so can one buy that at the same time as purchasing the TV?