First of all I'd like to give a HUGE KUDOS to lizrussspike for his suggestion on the Ethernet Powerline adapter.
I was a bit of a skeptic...but I was also desperate so I bought a Netgear Powerline AV 200. I never, EVER, in this world would have thought this would work but it does, and it's smokin' fast compared to wireless. It's the best money I've yet to spend on the PS3. And most of all I didn't have to drill holes and crawl around under the house! I mean it's not hardwired but's still great. No lag at all and it's a good 10-15X faster than the cheap wireless method of the PS3. Here's the link to the product...even though I bought it at Best Buy (in store):http://www.newegg.com/Product/Produc...-362-_-Product