As one of its daily deals, CowBoom offers the used Microsoft Xbox 360 250GB Slim Console for $99.99 plus $5 for shipping. Although we saw it for $5 less in April, that's still tied with last week's used mention as the second-best price we've seen for any 250GB Xbox console. (It's also $55 under the lowest price we could find for a refurb.) It features a 250GB hard drive, 802.11n wireless, and HDMI. Deal ends today.
Note: No warranty information is provided. This used unit may have dents or scratches and be missing parts or accessories.