When you need a simple dock for just charging your iPhone or iPod, nothing beats these budget friendly connections. They make an ideal addition to any bedside night stand where you can use your phone as a alarm clock too.
Xtrememac 3 in 1 Microdock
This is the most expensive of the group but it comes loaded with extra features. It packs two little speakers, so you can use it as a alarm clock and a small music center to help you go to sleep faster. It's got a line-in jack plus audio and alarm controls on the front. Great!
This is an interesting budget option that allows you to sync and charge your iDevice. It comes with all the adaptors you need for any generation of the iPhone and iPod, so one dock to rule them all.
We actually have this one and use it everyday. It charges "his and hers" in one neat package. We also appreciate that, without any adapter in place, it's able to charge an iPhone with no case or one with a thick, rubberized case in place, so you don't have to remove the casing prior to charging, which becomes annoying.
Apple Universal Dock
This is as simple as you will ever get. Designed for Apple by Apple. It comes with a remote that let you control iTunes playing and has audio out, so you can connect it to external speakers.