Here's how to get a Panasonic LX3 for ~$330 using Microsoft's Live Cashback deal which gives 30% cash back on "Buy It Now" Ebay purchases:

1. Go to www.live.com.
   
2. Search for "Panasonic LX3".
3. Click on the eBay paid search advertisement marked with the Live Search cashback logo that looks like this:
   
   
   
   
   
4. Search Ebay for a good "Buy It Now" price on an LX3 from a reputable dealer.
5. On the product page, you should still see the 30% offer at the top if the deal is still on. It should look like this (see the green label at the top):
   
   
   
   
   
6. Click on the blue "Buy It Now" button.
7. Before clicking "Commit to Buy", be sure that it explicitly tells you that you will be getting 30% off via Microsoft cashback. For example, you would not want to commit to pay if you get the following message (ineligible due to seller's use of third-party checkout:
   
   




8. Confirm your purchase by clicking "Commit to Buy" and then pay entirely by PayPal (purchase must occur within 60 minutes of your clicking on the eBay paid search advertisement marked with the Live Search cashback logo).
   
9. Check your Ebay messages for further instructions on getting your 30% cashback from Microsoft. They will require you to set up a program account with Microsoft in order to get the cashback. Your Live.com account will show the cashback amount after Ebay notifies them (~2 days later). Cashback will be issued after 60 days so that Microsoft knows they're not issuing cashback on returned purchases.
   

Note that this deal is not limited to the Panasonic LX3. All "Buy It Now" purchases made on Ebay (but not www.express.ebay.com or www.half.ebay.com;) and paid with PayPal are eligible with the exceptions of automobiles (and other vehicles) and real estate. The maximum cashback you can get on a purchase is $200. Additional terms and conditions for the 30% cashback deal can be found here.