iPod accessory, iPod speakers for iPod mini, what's available?

I think the first accessories I'm going to look at are speakers. I want to be able to use my ipod or ipod mini to use a regular set of speakers, like a base station maybe, where I can dock the ipod and use it like a home stereo. Maybe even if I could use the apple ipod mini at say a portable event, like for my daughter to practice cheerleading or to play it in the garage when I'm working in there.

The older 20gb iPod and the 40gb iPod had similar accessories. I'm looking around to see if iPod mini and or iPod shuffle has same type of accessory. I think external speakers is a very important accessory to check on. I'm going to see what I can find with regard to iPod speakers next as a primary accessory.