This deal has ended.
Buy.com now has the Sandisk Sansa E250 2gb MP3 Player for only $89.99 after a $20 mail-in rebate (exp. 10/29) and the $10 off $30 discount you get using Google Checkout (exp. 10/31). This is the only store under $100 (Buy.com did have it previously for $79.99, however). The Sansa E250 is a popular (4.5 of 5 by 39 reviewers) iPod alternative. It has a 1.8" color display and a slot for an additional memory card, if you want to expand its size in the future. Shipping is free.