While visiting a local Best Buy, my wife started browsing the music docks for iPods. (We both have iPhones and realize that you have to put it in airplane mode to make them work.) Most of them sounded loud and tinny, but one sounded very rich and seemed affordable to us. (And is iPhone compatible.) I didn't buy it on the spot because I wanted to take some time and do some research on the device and here is what I have found: It has received 4.25/5 stars from Best Buy reviewers, I cannot find it discounted anywhere on the net, and even eBay has 0 listings. What this tells me is that this is a solid device with a good track record and no one wants to give theirs up.
This dock comes with a remote, you can charge/sync your ipod/iphone with it, it also has a standard input jack for use with other MP3 players. The only downside is it requires AC only for power, but for the sound quality, it's worth it.
Click here to visit Best Buy and see. (By the way, Best Buy is also back ordered about 2 weeks...must be popular!)