http://www.majesticgrande.com/default.asp
If you are looking for a quality hotel within walking distance to the ill Nana plaza you can't go wrong with the Majestic Grande. It's right across the street from Annie's, then through the parking lot of the Rajah Hotel and left on Soi 4 and you are at Nana plaza. For some strange reason you'll get a discount 5-10% if you book your rooms through their sister hotel the Majestic Suites. Or if you are looking to save some cash rooms at the suites, Soi 4 and Sukhumvit Road, are less than half the 3,000 Baht of the Grande, and you can still use the amenities (pool, steam, gym) of the Grande.