Your best bet is to contact a local Realtor and have them set you up with an automated search. They'll program their MLS to send you an e-mail of everything that comes up, daily/weekly/monthly.
Here's my guy in Pompano. Very reliable, honest and knowledgable. Send an e-mail to "Randy":
http://www.palmairerealestate.com/
P.S. - Are you sure you're searching Realtor.com correctly? I know you crazy Europeans like to use "." and "," in weird places when writing about money. Do not use any periods or commas. I just did a search for "33060" with a range of $350000 ~ $650000 and came up with 51 listings...
http://www.realtor.com/realestateandhomes-search/33060/price-350000-650000
That being said, Realtor.com is aged cheese. You must have an agent (or someone with an MLS account) to get the "fresh stuff".