Get on e-bay and bag yourself a Fuji finepix S7000, I have owned one for the last four years and it can hold its own against any DSLR and macro lens, I say this through experience as I also own and use two Canon EOS DSLR's and a Sigma 150mm f2.8 EX DG macro lens.
The S7000 will give you all the macro capability you need and more, its easy to use and will consistantly produce stunning results, these are just a couple of examples of what can be done with the S7000.
