If "many sound Biblical arguments" really existed, then one would expect to find pre-trib historic premils, pre-trib amils, and even pre-trib postmils.
But it appears that one must "drink the kool aid" of dispensationalism in order to come to the conclusion that a pre-trib rapture is anywhere in the Bible.
Fact is if it weren't for your "ear-ticklers" and "money-grubbers" dispie-ism would have died out long ago. It wasn't doing very well when Hal and Co. arrived on the scene. "This generation" of dispensationalists has yet to raise up another Chafer. Probably will never happen. I'm afraid you're stuck with Left Behind novels and jack Van Impe and Paul Crouch on TV.
Your attitude is really piss poor. If you want to persue the matter, you could visit the Pre-Trib research center. But, frankly, pal, I don't care what you do.