I can't really tell you what is a good digital camera but e-bay has couple of them for cheaper prices when you decide here is the link:
Moderator Schmoderator Fluorescent fluorite, England
I have been researching myself for a new camera. I love my current digital camera but I want better close-up capabilities for my plants and other things. So far I am considering the Nikon Coolpix 5000. It offers macro capability and a wide array of other functions. Nikon has a new camera coming out this summer that is a digital SLR yet to be priced but is supposed to be "competively priced". I'm sure it won't be cheap.