A really good friend of mine has built his own script and I have a copy of it and I must say it is the best one I have ever used, and I have used alot of them. This one is very new and not many have seen it yet, but it is well worth the look just to see how amazing it is.
http://www.tgpxs.com/
And no I don't make ANYTHING from this, I have just watched it being built from the ground up and I know how amazing it is........ in fact I think I was the first one with a working copy of it on my newest TGP, you can see the submit form in action and what it does here:
http://www.oralbobbers.com/submit3.php
Like I said, it is an amazing script and deserves the mention.