Instead of picking up an expensive iPod-dedicated speaker system, just pick up a Sonic Impact T-Amp 5066 Portable Digital Audio Amplifier ($30) and use the speakers you already have. Although it's listed at only 15 Watts, the web is abuzz about it's portability (it'll run on 8 AA batteries) and it's astounding sound quality.
[via OhGizmo!, BoingBoing]