problem # 2 front main seal blew (see pg2)

i was out taking stuff to my storage unit in preparation for moving this Wednesday. i started the car, put it in reverse, and noticed a noise that sounded like a really bad s/c coupler...only a lot louder. switched gears to see if it would go away. nope.
here is where my diagnoses started: I popped the hood and noticed the noise was coming from the passenger side, everything looked intact (pulleys, tensioners, belts). i limped it home about 2 miles and noticed the noise would go away if i was giving it throttle above ~1500rpm. i didnt drive hard to see what would happen at WOT, but as long as i kept my foot on the throttle when stopped it wouldn't make the sound. but if i let it slip down to 1000rpm or lower (idle) the horrible rattleng comes back.
i got home ok and took off all the idlers and tensioner i could. all are in great shape. i pulled off the s/c belt and rant he car to eliminate that. it still rattles. a/c or no a/c it still does it. my PS pump and WP are both less than 2 years old.
so that leave what? harmonic balancer.
i am going to take a video of it and post it up in a few minuites. any and all help is apreciated. i really cant afford a new engine, but it sounds like something serious broke. no SES, no noticable driveability problem, no symptoms untill today when it stated making the noise.
thank you.
Matthew