I keep wondering about Dr Baltar though, is he a Cylon or not? My money has to be on him being a Cylon, he knows Boomer is a Cylon and has now said that all the Cylon tests will come back as clear. Also, he keeps seeing that woman all the time (no complaints though

) - but how come no other cylons can see her or have a "companion" of their own, then he knows Boomer is a Cylon and has now said that all the tests will come back as clear - however i still expect a twist there - why i dont know.
POSSIBLE SPOLER!!! (But complete guess on my part - Highlight line below to see)
(Unless he's the leader of the Cylons or something - did that not happen in the original series?)
Plus Six can pick stuff up - like in the lab when there testing the blood samples there is one scene where she has it in her hand - so its like she's there - but not.
And whats the purpose of Helo on Caprica - wheres that going there?