My answer depends upon how much of an audiophile you are.
If you demand really good sound, a docking station will not do, and I can recommend a few places you can get a good shelf unit for less than $200, or just get good computer speakers, and use the 1/8" jack on your Ipod. I would recommend any of the X series from Creative.
If the quality of the sound isn't so much a factor, the docking stations will do, but I would not recommend the Bose unit, as you are really just paying for a name. I would recommend a Creative unit, as they do have very good sound for less money than a comparable Bose unit, or really any one else for that matter.
I don't work for Creative, I have just bought a lot of different brands of small speakers and they seem to have the best for the price.
If you said budget wasn't a concern, I'd recommend some of the equipment I have on my home stereo, or the Milwaukee job site radio that Rockford-Fosgate makes, but it is probably more than you want to spend.
Good luck,
Joe.