Thanks a lot for your answer !

But you see where I live in France, I won't find a store that will have an A5000 and an Emu IV both plugged and loaded with same cd roms datas.

Also they don't let the user try... They just say : Ok ! buy, buy, buy...

So I really need help and advices. Also price is very different...

Thanks very much for all your tips and infos
and best regards to every body.