PDA or handheld computers for ID in the field ?

[Adolf Ceska]

I am sorry, I found that I ask this list questions that may look quite
stupid. I have to say that in spite of this I have always found a really
good answer to my "stupid" questions from the TAXACOM list subscribers. 

I would like to use a small PDA (Personal Digital Assistant) alias a
handheld (or palm) computer for identifications in the field. Is there
anyone on this list who would give me any hints what to get or any warnings
what not to buy? I would really appreciate your help. I am a botanist, but I
would not toss out any useful information from the zoological fields.

Many thanks,

Adolf

Adolf Ceska, Victoria, BC, Canada