try
<A target="_blank" HREF=http://www.sweettractors.com/> Sweet tractors </A>
or
<A target="_blank" HREF=http://carverequipment.com/default.htm> Carver </A>
I am shopping for a first choice 60" I haven't gotten a quote from Carver yet, but Sweet Tractors was $575 plus $88 shipping (18 wheeler accessable business) to Mass.
Here is a link to a thead describing TresCrows' experience with the First Choice Aerator <A target="_blank" HREF=http://www.tractorbynet.com/cgi-bin/compact/showflat.pl?Cat=&Board=implement&Number=150016&page=&view=&sb=&o=&vc=1> Click Here </A>
Link to first choice <A target="_blank" HREF=http://www.firstchoiceequipment.com> CLick Here </A>
I've done some research and the other options of quality (Gandy, classen, toro, woods) are much more expensive. the agrifab units at sears/lowes are a joke.