I'm looking to get into real estate, and topic index seems promising on a 5-10 year scale. Are there any ETFs, or mutual fund products offering to track this index?
Although you can't invest in an index, you can invest in a fund that basically invests in what the index is made up of. Example: In dealing with an auto index, you could find a fund that buys car companies's stock. The Google Finance list of funds dealing with INDEXDJX:REIT Although not pertaining to your quetion exactly, you may want to consider buying into Vanguard REIT ETF
I hope this answers your question.