good jogging shoes?

im looking for good jogging shoes to run short distances 4-6 miles. what would be a good shoe to start out.
im keen on buying the nike free.
http://urbansemiotic.com/2005/06/26/nike-free-50-review/
does any one have a better shoe in mind.
i usually walk a lot and can even swim a decent bit but get tired running. im planning on [...]