I find the more you see of a Anime from the begining, the better it is to watch.
Enjoy a lot of it and I don't like to say anything bad because most of the time I see an episode in the middle and am always trying to figure it out until I see it from the start.
Childhood nostalgia:
Robotech - have them all on DVD.
Voltron - Grew up with the Lions, but really want to see the vehicle episodes again.
G-Force - I really wanted to be part of the crew of that ship.
Gundam Wing/Seed/Etc - Giant robots are too cool. I need to see more of those episodes.
Evangelion - Emuz, "You have some NERV". Much like Robotech, hate the last episode

, everything else is fine. All 8 Volumes on DVD.
Bleach - just got into it when Cartoon Network had its holiday marathon on adult swim.
Ghost in the Shell - Awesome series, including SAC and 2nd Gig.
Naruto - "Believe it!" is the only thing I can't stand in the English translations.
I have been turned into a "Naru-tard" because I have seen the first 172 episodes with subtitles.
I have three movies, that I have yet to watch.
Inuyasha & Cowboy Be-Bop- fun to watch.
Full Metal Alchemist- Sucked me in. Al is my Favorite character.
Seen Samurai Champloo, but not much of it. Really like Gene, the Guy with Glasses.

Just saw Spirited Away for the first time, cute movie.
Edit: Forgot about Eureka 7 . . .
Bring it on!