^I mostly torrent mine but yeah sometimes I watch some on youtube if someone has uploaded them. Some websites are devoted to a single anime (i.e narutofan.com), so I usually download my Naruto related stuff from there.
I still like this one and you reminded me to rewatch Undergrads.the only full series' i have on dvd is:
Power Puff Girls (only 1 season so far)
Aqua Teen Hunger Force
Darkwing Duck (only 1 season so far)
i know these arent "anime" but i love to watch them