My shopping post is going to be short and sweet. I know you are all going to be so busy working on your family history rather than going shopping, but just in case you get the inclination, my recommendation for shopping centers that are near downtown are the Gateway and Trolley Square.
The Gateway is just a couple of blocks to the west of the Library--you can hop on Trax and head down to the Gateway easily because it is in the free fare zone. Besides the food court, there are numerous good restaurants, The Happy Sumo, Fleming's Steakhouse, Tucanos Brazillian Grill, and McGrath's Fish House. And you definitely don't want to miss the Rocky Mountain Chocolate Factory. But then there are some great stores there too. Everything from Ann Taylor and Coldwater Creek to Sanctuary Day Spa and The Walking Company.
Trolley Square is a 100 year old trolley depot that was turned into an upscale shopping area. It is over on Seventh East between Fifth and Sixth South. There are lots of exclusive little shops, jewelry stores and art galleries making Trolley Square a fun treasure hunt. Don't miss the Old Spaghetti Factory, Rodizio Grill or the Wiseguys Comedy Club.
And if you happen to need a regular drugstore, there is the RiteAid at 72 South Main (one block east of the conference) and the Walmart at 1300 South and 300 West. This Walmart is easily accessible--just a half block west of the 1300 South stop on Trax.