What is the best $400 to $500 receiver for my speakers. My speakers are the Polk Audio's: RTi38, CSi30, and FXi30, and my subwoofer is the Yamaha YST-SW305. I do not want any Harman Kardon receivers, because I do not like what they look like and I tried one out and some of the inputs were loose and I think that HK has a lot of quality control issues, because I see a lot of refurbished HK's on the internet. I want a receiver that sounds great in music and great in movies. In my comparison in another thread I compared the Yamaha HTR-5660, Onkyo TX-SR601, and HK AVR-230. Yesterday, I took back the Onkyo because its length size is a little longer then my entertainment center's shelf and its sound quality was a litte flat movies. Right now I am using the Yamaha HTR-5660 and I am thinking of returning it, because it started to sound bright with my Polk Audio speakers. Please recommend a $400 to $500 receiver similar to Yamaha's HTR-5660 dimensions (17 1/8" (W) x 6 3/4"(H) x 15 3/8"(D))that will go with my speakers. The brands and models that I am looking at are: Denon AVR-1804, Marantz SR5300, and Marantz SR4400. If you have any other suggestions, please post. I prefer to buy the receiver locally if possible, and if not possible from an authorized dealer on the internet and at a good price, because I want a warranty on the receiver.