Those re-issues are a nice markdown. Ergo Proxy, Fate/Stay Night, and Shana were all $70 MSRP originally. Now they're $50. At sale prices, they'll be good and cheap. Good to know, since I want Ergo Proxy eventually. I may even double dip for Fate/Stay Night to support it and save space, though that's for when I feel like throwing a little money around.
Definite yes on One Piece and Sgt. Frog. I don't know if I'll want to own all of Sgt. Frog, I just know that I'll likely get a kick out of owning some episodes.