Peaches - since you gave up info on your secret inexpensive hotel finder for Vegas I'll give up info on my secret inexpensive hotel finder for New Oreleans
http://www.turbotrip.com/res/rfp/citysrch....ity=New+Orleans
Not as good as the one you had for Vegas but usually better rates than in most places - WARNING if you book through turbotrip call the Hotel after you book to make sure you have reservations
Also if you're not set on going to Jazz Fest and you arrive Sunday and stay a few days after it will be much less expensive, both hotel and airfare wise
On the Epoch party site is says their man Keith has got swing with the hotel for better rates