I agree. I liked that episode and that moment. I also agree intergang and Tempus were great villans,although with intergang I wish they went ahead and had Bruce Campbell play Morgan Edge instead of a Morgan Edge knock off. I wonder why they couldn't use him?
As for Shea's return,the only thing I disliked about that episode is the terrible bald cap they made him wear.i know they wanted to have Lex be bald at least once on the show to tie it back to his comics roots,but it was...just bad. Thankfully they dropped that conceit with his season 3 arc. I mean, I liked the idea that his resurrection cost him his hair...but that bald cap is the stuff of nightmares!
I also wish we got at least one episode where Lex and Tempus had a team up. Since we never got Brainiac on the show,instead of a Luthor/Brainiac team,we could have had a Tempus/Luthor team.