Hello.
We just got our new site through real-estate-designers.com - real estate web site design and we are doing google PPC.
Can you guys recommend other avenues of marketing besides PPC and SEO?
Thank you

Those are really the main two ways of getting traffic. Of course you can write articles and submit them to other sites, create some good original content, advertise your website on all of your marketing material (business cards, pens, fliers, etc...), tell everyone you know about the site.