Anacryptogram solver!

Letter pool:

Sentence:

Checklist:

Suggest words (slower!) # of suggestions: from:

Suggestions: Shuffle

Use wordlists (possibly slow!)
Bad words:

Extra letters:

Type your sentence above. The word counts and letter pool will update. It will let you know if you use too many letters, and if you get a valid sentence. Also, now hitting "Enter" will shuffle the letters. It will un-shuffle when you keep typing, but for now, that'll have to do.
Additionally, thanks to inspiration/code form @alapl051, it now checks to see if your words are okay in length and are in the list, and can suggest new words. It may be slow for some people/browsers - try Google Chrome if you have problems. Enjoy!
Image url: Anacryptogram:

Hints checklist:

Letters left:

Pst! If you happen to like collecting and/or sharing quotes, and are on Facebook, check out my Facebook app, Quotebook - you might find it useful.

Hey guys! This thing has evidently proved very useful. So...yeah, keep using it, and let me know if you find any problems with it, by Twitter or email. Thanks to @pogil for the #qwantzle hashtag. Best of luck, solvers!
Also, if you happen to like collecting/sharing quotes, and are on Facebook, check out my Facebook app, Quotebook - you might find it useful.

Updates:

3/21 1:14am: Woah! This thing got reddited, and the analytics are showing it! Since it's being used more again, I added more lists from @alapl051 and shuffled some things around - let me know what you think.
3/8 8:03pm: Added lot of new lists from @alapl051 and integrated his hints, made things prettier and smoother, and separated out the "valid" list from the "suggestions" list, so you can get suggestions from a different list that constitutes valid words.
3/5 4:50am: I added all kinds of things - I integraded @alapl051's word list checker, with some modifications, and made the errors more awesome. For now it's just my list which is @jadrian's list, with 9-10 and 12+ letter words, non-dictionary words (from my /usr/share/dict/words), words with punctuation, and words that don't fit the puzzle removed. That was about 1/3 of them. I may add more later, let me know if you have suggestions. Right now, I'm going to sleep. It's way past my bedtime. Oh, and if this breaks in IE again...I'll look at it tomorrow. Cheerio!
3/4 2:50pm: Reformatted this box, added hints and more links.
3/4 12:14am: Added a Twitter feed and cbox, and tried to make things look a little better.
3/3 8:43pm: Thanks to @johnlightle's question, got it working on Internet Explorer. Also made the anacryptogram dynamically updatable, too.
Show old updates

Resources

Hints:

The solution is one sentence, with the two exclamation points together at the end.
Note that this, together with the hint that there are no other proper nouns, strongly implies that all three capital I's are the word "I" - thanks, @alapl051, decode, and Matt!
All words in the solution are dictionary words.
What's more, all words in the solution are in the Jadrian's awesome Qwantz Corpus!
The solution is natural-sounding, reasonably-grammatical dialogue that T-Rex would say, using phrasing that T-Rex would use.
The punctuation :,!! is in the solution, in that order!
The longest word in the solution is 11 characters long, the second-longest is 8 characters long, and they're side-by-side in the solution.
The solution does not refer to anagrams or puzzles or winning t-shirts.
However, what T-Rex is saying is directly related to the content of the comic the puzzle appears in.
The letters given are case-sensitive!
The first word of the solution is "I".
This solver thing works!

Word Lists:

The official XML list of all Dinosaur Comics text
Paul Stansifer's Qwantzle Data, with ngrams, 2grams, and 3grams.
@jadrian's original Qwantz corpus
@kkutani's list of valid words words from @jadrian's corpus
@alapl051's space-delimited word list and 11-letter word list
E-mailed lists: 11-letter list from Mr. Beingessner, alphabetical 11-letter list from Ben Johnson, 11-letter by frequency and filtered by length by frequency from Reverend Ted

Other scripts/solvers:

@alapl051's modification of this page that checks for valid words and gives suggestions
@jadrian's handy branch-and-bound solver in Python
@xyzzy_b's Ruby script of a similar bent to this thing
@kkutani's brute-force perl script