I've stayed at the Crowne Plaza and don't consider it very well located: it's in a rather desterted office area and about 10 minutes walk to the center of town. There are several better-located hotels (e.g., the Millenium), and several nicer ones. Check out reviews at TripAdvisor:
http://www.tripadvisor.com/Hotels-g2...nd-Hotels.html

http://www.wotif.com/ is good for finding last minute rates (within 2 weeks)