You need to check http://www.slickdeals.net. There are always tons of docking stations posted there well under $100, sometimes with rebates and such, but you can't go wrong on that site. I've purchased plenty of good deals there. Check the forums and do a search for docking station.
They have everything from computers to food posted.
Thanks for the tip! I check their RSS feed on my website often but never realized they had a forum.
In looking around on Amazon.com, a lot of the docking stations with speakers seem to habe unfavorable comments or are just very limited in functionality. May just be better to plug it into a mini-shelf system. But I wonder if you can do that, play the iPod through the system AND recharge it at the same time...
Although a little over $ 100, I would recommend Altec Lansing iM3 speaker set.
A friend of mine recently bought this and must say the sound is pretty good for such a set.