ok. the jeep runs again. And before I tell everyone who might stumble upon this thread, or those who might be watching, or who have commented, I need to make a statement.
No matter how good you think you are, how great your mechanical skills are, for petes sake, always retrace your steps when you encounter a problem that seems to have come out of the blue. It very well may be the simplest thing that you thought could never go wrong with the job. That includes checking your fuses and swapping relay's, and as much of a pita it is, check your grounds.
Now to the solution to my problem. I had a no crank situation after I welded some new shock mounts to the frame. I was pretty sure I unhooked the battery but not 100%, and so was afraid I fried the ECU. Come to find out, after peeling the loom off of the entire engine wiring harness just to trace a wire that went from the starter relay to the ECU, I found a splice in the wire and it wan to another circuit. A circuit that ran through a plug. Well....in my earnst to make the swap look OE, I unplugged the harness at said plug because it did not power any components that I was using with the swap. Apparently the wire in question double back through the plug to complete a circuit. PLug the discarded harness back in and voila!
THanks for the input from all who tried to help. Now if only someone could come up with an acronym to relate my alcohol consumption to my Jeep ownership, I would have a slick ending to this three day ordeal. Thanks again