Buy.com has the Atlantic EGO iPod Waterproof Sound Case (model no. 25906033) available for $66.99, which results in a $33 price reduction from the $99.9 list price, and turns this into the best cost we could find by about $5. Aside from the waterproof casing that can float in up to 3.3-feet of water, the device provides up to 24 hours of playing time, as well as a waterproof click-wheel for changing music. Shipping rates start at $75.72 and sales tax applies for residents of New York and California.

The much smaller iLuv Mini Portable Speaker for MP3 Players and iPod offers a tiny pocket-sized design and requires three AAA batteries to power. It’s currently on sale at Amazon.com and priced at $21.52. The SDI Technologies Protective Speaker Case for iPod can be found at Nextwarehouse.com, and costs only $42.74. Or you can go all-out with the Focal Professional XS 2.1 Sub/Sat Multimedia System for iPods, which is available at Bhphotovideo.com for the discounted price of $599 and includes FREE shipping.