What sort of price range are you looking for? $150, or at worst, 200, will get
you a nice 3MP camera with 3x optical zoom.

Ignore cameras without an optical zoom, they feature fixed focus in most cases.

I'd like to reccomend my Rollei D330, which will do the job (specs suggest it
will go as close as 6cm, I've tried about 30 or 40cm, and it came out very
legible on stuff like the text on coins and 6-point text. However, it's a
real pain to find (apparently my local shop's the only place in the English
speaking world which sells it). It cost 99.95, however, it's long obsolete.

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Marada Shra'drakaii