I've been to Vegas more time than I care to admit and have to agree with Russ if you only have one day. I love downtown but with only one day skip it. It trip will take to much of you sight seeeing time. There will be lots of good food available at all the hotels Russ mentioned. I also suggent you go to
http://www.tripadvisor.com . Type las vegas in the search bar, then go to the forum. You'll get a lot of good information there.