Don't know if this has been mentioned in this forum yet but just a FYI for anyone considering one of the ebay lifepo4 batteries or looking to buy some tool packs. You can use live.com to save 10-35% on ebay buy it now purchases.http://search.live.com/results.aspx?q=cheap+battery
(ebay link may be less prominent and appear to the right of the page)
The discount has varied between 8-35% (anything higher than 8% has been rare as of late but it's currently 30% as of 10/1/2008). Max $200 savings per purchase, up to 6 purchases (edit: now up to 12 purchases). Simple instructions click here
. More specifics in this thread at fatwallet.com
Also, if you buy more than 1 quantity in a "Buy it Now" (with more than 1 available) it will count as 1 transaction. For example, if the cash back is at 30% and you are looking to buy several Dewalt A123 packs you should buy more than 1 in the same auction (up to $667 total) to get the max $200 cash back per transaction instead of buying them in separate transactions (since the cash back is limited to 6 transactions per ebay account).