Received this email, so some of you may have as well.
Read instructions and limitations below. Must sign up for a microsoft live account, eBay account, and pay for the item with your paypal. The only somewhat catch is that it may take up to 60 days to receive the 30% cashback (max of $200) from Microsoft in your paypal. The 10% from ebay is instant.
I just bought a Nikon D60 DSLR camera kit with 18-55 VR and 55-200 VR lens, plus extras for $466 after discount. $270 off selling price.
My GF bought a 37" Toshiba LCD TV for $465 after discount.
Great deal if you have the patience.
[SIZE=2]Here’s how to save up to 40% with a coupon + Microsoft Cashback:
1. Search for an item on www.live.com.
2. Click the sponsored ad with the Microsoft cashback symbol 
You’ll be taken to eBay.com.
3. Make sure the item is Buy It Now and the seller accepts PayPal. If the item is eligible,
you’ll see a cashback notice on the “commit to buy” page.
4. Enter code: CSHOPEBAY2008. Pay with PayPal before midnight PT on Dec 1, 2008.
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Microsoft Zune iPhone 3G Nintendo Wii Dooney & Bourke
*See Microsoft cashback terms and conditions.
eBay Coupon Terms and Conditions
The offer will expire at 11:59:59 PM PT on December 1, 2008. Receive 10% off (maximum discount of $100) the purchase price (excluding shipping, handling, and taxes) of a single item on eBay.com. Recipients of the coupon must be registered eBay members and pay for the item with PayPal.
The coupon is non-transferable, void where prohibited, not redeemable for cash, for one-time use only, and has no face value. The coupon is subject to U.S. laws and cannot be combined with any other coupon. eBay reserves the right to cancel, amend, or revoke the coupon at any time. Use of automated devices or programs to redeem the coupon is prohibited.
Purchases made through any customized checkout system and/or eBay Live Auctions are excluded.