I managed to get hold of NCIS series 2 & 3 for around £17 each and have been working my way through them. I'd never actually seen the last episode of two or the one where Tony was sick. It's very sweet the way Gibbs is with Tony after he's been ill, he really does care about his team.
Series 3 was mostly new to me and I actually didn't find myself disliking Ziva at all. After examining several of the episodes I think DMc is actually limping on his left leg unless I'm mistaken. I'm not really seeing any slash pairings in the show, though I think the only which stands out as possible is G/D and even that I'm not convinced of after the last episode of 3, due to the lack of remembering thing. I do like how G says goodbye to everyone and then asks for a lift off D though.
Not sure how I'll feel about series 4 though, as I don't think I've seen any of those episodes yet. The relationship between McGee and Abby is very sweet and I'm assuming at some point they'll have them dating.