[BoomerD]

Personally, I wouldn't waste the extra money buying the "live sand", but rather, would beg/buy some sand from other people's reef tanks to seed the "dead" sand. That way, you not only get some nitrifying bacteria, but hopefully, you'll get some actual sandbed life, which can spread to the rest of the tank...little bugs and worms are what makes live sand "live"...not just the nitrifying bacteria found in bagged live sand.
A local reef club or other hobbyists in your area are good sources. MOST reefers will gladly give/trade/sell you a cup full of their sand to kick yours off. Many clubs have a live sand propagation tank where hobbyists donate a cup of their sand to the project, then, someone needing a cup for seeding, can bring a cup of their "dead sand", and take a cup of "live sand". As long as no one brings undesirables like red flatworms or red acro bugs, this is a great way to maintain a steady supply of live sand for new tanks, or recharging old tanks.