apartmentratings similar

I am needing a website built similar to apartmentratings for use in Canada/USA (with options to add other countries later). I am familiar with Joomla, so I would like to stay with joomla. I have hosting space already setup, and domain name already registered. Also need mobile version tied in for mobile phone users that can send out alerts (text message) when an apartment opens or something similar pops up. I consider myself a dabbler with web programming, so I know a bit myself to take care of some of the issues, just do not have the time to do it all.