Oh, so you haven't seen the last half of season three? Mmmm... I was kind of disappointed with the turn of events during that part of the season but Maelstrom changed everything... I love that episode so much! (it is painful but beautiful at the same time...). And the S3 finale is just GREAT (Lee is amazing!).
I think I know your "nauseous feeling" about BSG... BSG is a dark show and it makes you suffer a lot (and I love it, by the way... are we all fans of BSG some kind of masochists?? lol)