I wouldn't guess main bearings as I've seen and heard of very few of those geeting spun. Your best bet is the rod bearing going. Whatever you do, don't keep starting and driving the car! You've all ready done damage to the motor, now you're just adding to the damage by spreading metal particulates further throughout the engine. The Hayes manual is a good starting point for basics at best. You can drop the pan simply by throwing the car up on jack stands on the front and removing the bolts the go around the perimeter of the pan and then there are two the connect to the transmission bellhousing. If it takes a shop more than an hour, you're at the wrong shop. Drop me a PM and I can walk you through it on the phone if you need.
Thanks,
Rick
