Hi!
EDIT: Gah - beat me to it bananafish!
It's nice to have new people around but could you try to do a few things?
1) Please have a go at spelling things correctly. I'm sure it can't be that hard to use the spell-checker in Word or something similar and copy the text from there into here.
2) One-liner posts are all well and good but sometimes it's nice to have a bit more contents than just the one line. For example, in this topic why not mention your own favourite and explain what it is and how you use it

.
3) The sections in the forum are there for a reason...
Sorry to be critical though...
My personal opinion on gaff decks is that they are well and good, but you really need to have a good reason to use a gaff because many of the decks you have listed are just methods to get around being able to do a decent card control. For example, a stripper deck is good to have but really, IMHO, a double undercut pretty much eliminates the need for this. Sure, you can do some good effects with one but you can do good effects with a normal deck too! Another example of this is the Svengali - the effect is rather simple and IMHO, not that impressive. The main problem is simply that it is not examinable, so people want to check that the deck really has changed into all their card but they cant.
So out of all those decks you have listed there, my favourite would be the ID - it's extremely versatile and it's got many uses, unlike, say, the Mental Photography deck which is only good for one trick!
Kati