I take it you have seen most of ghibli studios?
http://www.onlineghibli.com/films.php"
Grave of the fire flies is depressing as hell ive still not watched that as every time i watch it i get upset and have to turn off (yes im such a girl)
Pom poko was actuality a surprised to me as to how good it was. I was expecting **** and have watched it about three times since i bought it about 8 months ago.
and finally poro rosso or the crimson pig. Its fantastic Its about the turning point in italy where the govment changed the laws and private guns for hire were no longer welcome. Strangely enough the main character is a man/pig but no one seems to care but it explains that a little later. It really is a beautiful film and the flight sequences and dog fights are perhaps some of the best ive seen all hand drawn.
Now some series
I will try to stick to the shorter series so its not too big a commitment
Area 88 - Is so well written and the dog fight scenes are amazing (done with CG) its about a guy who is about to marry the daughter of the prestigious airline group when his best friend takes him out a celebration drink. he wakes up to find he has signed up to a private army in the dangerous area 88 the only way to get out of the contract is to pay the exit contract fee, earn your way out by completing missions, or escape Very good had me hooked from the start its about 12 episodes i think maybe 22 at most
haibane renmei - which is unusual, I think its about purgatory, but not in the strictest sense. If i say anymore it would ruin the surprise. its twelve episodes long you could get though it on a lazy weekend and it had me hooked throughout
you can pick up AREA 88 cheap enough if you get the US version on DVD. think its about 16GBP inc P&P delivered. Renmei is avaliable in the UK but you will likley pay more than the us version which can come in one box set