Most speaker docks are designed with the iPad and iPhone in mind-- neither of which I own at the moment.
I do have a laptop and will likely be getting a cheapish MP3/AAC player to connect via Bluetooth or some kind of connection, and am looking for something that sounds good. My price range is $200 to $500 USD/CAD.
I have my sights on two of Samsung's docks; the DAE 570 and the DAE 750. The latter usually goes on sale every few months here in my city, so if I were to go with this option, I will need to wait for it to go on sale. Both are 2.1 channels, and the 750 really has that "girlfriend approval" factor going for it, since it comes in a rosewood finish and has neat "tubes" that changes color and may or may not be affecting the sound quality (in a good way, of course)
The DAE-570 is cheaper, and the space the dock will go in is relatively small. The living room is 10 ft high, and 10 x 15 feet.
Both are attractive since they offer Bluetooth wireless connectivity which is cool. (I have Bluetooth on my Android HTC and I believe my PC has this; not 100% certain). Both also got great customer reviews from Amazon.com and seem to be good docks for their prices.
I am open to any other suggestions.