I am not sure whether this posting is appropriate here. (Please tell me then I will delete)
I just made a purchase at prodigital2000 in ebay for the above lens with the final expected cost (excluding s/h) of $395, by combining the MS Live CB 25%, 15% ebay coupon, and ebay credit card (I opened an account).
700 - (MS Live 25% of $700) - (ebay 15% of $700, max. $100) - (ebay card 15%, max. $30)
It could have been better if I was not bound to prodigital (to replace my previous order with this one) and used MS Live 30% cashback. The cashback was down to 25% today
. Even without the ebay coupon,
$645 (other vendor in ebay with buy now) - (MS Live 25% of $645) = $453.
can get this one (still too expensive?)...
Good luck!