Website marketing ideas??

We a small IT company with expertise in Microsoft development skills. We've recently launched a Property search website and currently running a trial in the Western Cape.

The URL is http://www.adlive.co.za. We've changed the traditional way of searching for property in South Africa. We've just started marketing our website and need some creative ideas to spread the word.

Anyone have some pointers or tips? We don't have a big marketing budget lol. Infact we don't have a budget. We are willing to spend about R5k for starters. Any ideas?