http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/6484002/wo/Yh4gcPBqpIm62G7TJp6mXQiTVIn/8.0.0.21.1.0.8.7.3.5.1.1.1.1.5.1.0.5.0 2gb for $99 is pretty good. The ipod is easy for kids.
The NR denotes No Reserve, Meaning the seller has not set a minimum amount that they would allow the item to sell for. If this seller had a reserve price set, say for $500, if the auction ended at $470, the item would not be sold.
quite a few of the items qualify for free shipping if you spend more than $99. also use google checkout to save $10 more on purchases over $30, I think.