$100 AdWords coupon for [noob]AdSense publishers

So I got this letter from google a few days ago giving me a $100 coupon. It says it drops in value to $75 on 12/04/09 and value becomes $0 on Jan 01 2010. Ya so anyway this is a noob coupon evidently for adsense publishers who have been sucking in googlecash but never blowing their wad on Adwords.

My question is that since I will be opening a new account anyway can this coupon be combined with any other noob coupons, such as that old regular $50 noob coupon they used to have for any member of the general public who opened an adwords account?

Yes I know I am cheap, have little to no clue how to make more than/most of this coupon back in grown up dollars and just want to max whatever piddly gains I can make upon opening a "new" adwords account linked to my adsense account. Yes I know I have to think big and scale upwards in this industry or perish as a part-timer or worse get wiped out blah blah blah but for now I just need be cheap on this first baby step.

 

I don't think they can be combined, but that may have just been the two particular I tried when I opened my first one.

As a side note, I got one of these as well and would give it to any interested party who PMs me.
(Edit: Gave away already, no more PMs)

 

Nope, adwords vouchers can't be stacked unfortunately. They only work on new accounts (<14 days old) and you can only apply one per account!

 

As a side side note the coupon I got clearly said non-transferrable so bear that in mind if you are the type who likes to factor risk-reward ratios before taking the plunge.

If I signed up for adwords today, would I have to burn these dollars up by new years or would I get longer to spend the $100?