UPDATE - STEP BY STEP - OH BABY - GOTTA GET TO YOU GI-I-I-IRL.. 
REBATE FORM
1 - Find out what time your local STAPLES opens and write down their phone number!
2 - Call them and see if they have the printer in stock, and how much it is.
3 - You may want to drive past it on your way to BBY and go in to verify they do in fact have it, perhaps snap a photo of it on display with the price using your digital camera.
4 - Go to Best Buy, purchase printer, place in your car. DO NOT OPEN THE PRINTER! DO NOT TAKE OFF THE UPC! DO NOT TOUCH THE PRINTER YET!
5 - Put the REBATE RECIEPT and REBATE FORM with your printer.
5 - Go back to Best Buy later with ONLY the ORIGINAL PURCHASE RECIEPT, leaving the OTHER TWO documents in your car or purse or back pocket or whatever. Keep 'em out of sight!
6 - Go to customer service desk and tell them you bought the printer and just went to STAPLES and saw it there for less.
7 - Read the YMMV's below. One note about a printout from STAPLES.COM, Best Buy may claim it's an "Online Deal", just tell them you got the printout from the IN-STORE KIOSK at Staples, and that Staples said you could pay cash for it right then and there. Remember BBY is supposed to call Staples to verify the price, which they may or may not do. If they do have to call, supply them the phone number. Perhaps have that photo ready of the item in-store if they give you a hassle.
If anyone does take the above mentioned photo, post it here for others to use!
8 - Either you will get your price match or not. If you don't, try another Best Buy. Otherwise you can just return the printer.
I hope this helps!
YMMV for TWO REASONS --
1) Some BBY stores require an actual circular with the advertised price before they will call and PM..
2) Some STAPLES stores charge full price for some items when other stores have them on clearance..
This deal IS TOTALLY DO-ABLE however it may take some LEG WORK.
(Again, I let the cowboy from the Village People write some of the copy, sorry.)
OK - This Sunday morning go to BBY and purchase
SAMSUNG ML-1740 Laser Printer 149.99-80 MIR
SKU 6308346
PM to STAPLES SKU 573814 ($99.98)
99.98 PM
- $5 ( 10% of the difference)
-$80 (Mail In Rebate)
-----------------------------
$14.98 + (tax on $94.98)
You writing this down?
Love,
Ymmvradio.com

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