With over 2 years of SEO and SEM training and education and now a REALTOR I've managed to come up with the following tools every new agent must have to have any measure of success in todays tech savvy world:

• Blackberry: I use the storm but i've also found the you get greater reception with Blackberry's older model, the Curve. Great when you are showing a house in a suburb (far from cell towers).
• Laptop: I have had a Sony for years and it's one of the best investments I've ever made.
• Social Media: Twitter which will act as your radio broadcaster. Blog: I use wordpress where I offer real estate news, how to info and lots of first time homebuyer / seller education. I do not sell anything on this page. This is similar to a newspaper where you provide your professional advise.
• Marketing: Invest in Trulia or Zillow  profile and advertising. They will generate tremendous traffic your website if you set it up right.
• Continuing Education: Keep your real estate knowledge growing everyday to provide the best service you can. I'm not talking about designations although some of them are worth the money. I'm talking about real estate courses that will keep you up to date in areas you are weakest such as mortgages, current lending practices... etc.