Battlestar Galactica - No Exit - I'm a PC!

Okay so I am totally mind-frakked now.
The "final cylon" Ellen Tigh gets resurrected on a Cylon Basestar... then she talks! All kinds of stuff about how the final five created the other models, etc. Then over at Galactica, another of the final five Cylon -- Samuel Anders -- starts remembering stuff, etc. A lot of details. I watched the episode again and visited Wikipedia, LOL. This show is finally wrapping up and it's good! There are five episodes left -- how exciting!
We were given one more mystery to contemplate: there existed a Number Seven named Daniel -- but was compromised/killed by Cavil aka John. Could Daniel be Starbuck? Could Daniel be Baltar? Could Daniel be Gaeta?
Also, Sam's brain surgeon is non other than "I'm a PC" from the "I'm a PC, I'm a Mac" Apple ads. Frak!