Oh heck ... I checked Alamo with the codes from Vacation Outlet (http://www.vacationoutlet.com/car/default.asp) for 12/10 -12/14 and got $120 with all taxes for a Compact car. That's a good starting place.
Thank you for this link!
I just reserved an intermediate car from Alamo for 12/17 - 12/26 with an additional driver included for $203 total!

My only concern is that I got a message saying that I might be asked for a coupon at the rental counter. Is there a coupon I might need to print out?

.
Or it it just the rates that went down?
after coupon #nd1276fdt ($30)...that's $90 less in little over 2 weeks!
. As it's an affinity code & not intended to general public, im not comfortable posting; although I suppose one could find it via a search easily enough. It's the one card i've never been asked to produce, YMMV