I believe that pricematching at 800 is always supposed to include S&H charges, I got lucky when I pricematched for my reciecer the CSR was so distracted she never inquired about S&H, if you use the Brands For Less rebate they should pay for S&H as well as giveing the rebate.
You defiantely can use BFL for this, Place the order through BFL, then when you receive the confirmation email from 800.com, call the CSR and tell them you want to pricematch. Your actually right about the coupon as they will only price match to the low price and not apply the coupon on top -My bad. I'd recomend wating to fill out the BFL rebate for until you have straightend out the cost of S&H, just bookmark it after you place the order.
Check out this thread and it might help clarify the BFL deal. http://talk.dvdtalk.com/ubb/Forum1/HTML/013938.html
Hope this helps! and welcome to the forum BTW!
D'oh just realised that the BFL rebates expired, keep checking that thread as they tend to only go a few days without an offer.
[This message has been edited by jpcamb (edited July 19, 2000).]