ive seen:

fullmetal alchemist (probably one of the best animes ever in my opinion)
elfen lied (omg this is so amazing omg)
fate/stay night (better than secks :3)
eureka seven is amazing but the whole series hasnt been subbed yet :P they're on 42/50 at the moment.. shame really :P
chobits (lol a light hearted but nice anime)
love hina (<_< was okay but kinda boring)#
bakuretsu tenshi, also know as: burst angel (oooh i love this its so cool.. just look it up)
The Melancholy of Haruhi Suzumiya (currently watching this.. and its amazing lol)
Trigun (i know its good only seen 4 episodes though)
evangelion (only seen 4 again :P but i know this is good)
flcl (fooly cooly or furi kuri.. has lots of names ;P but is a short 6 episode anime that's nice to watch if a little random)
bleach (meant to be the best anime ever.. shame i havent got around to getting it yet)

yeah.. they're the ones ive seen that are worth mentioning oh and ergo proxy.. that's good but its only half subbed so ive only watched half of the current subbed ones.

anime ish fun lol