All of them, you poor bastard.
First, the
Ragnarok Online II soundtrack. Then we start with her anime scores. Specifically, the
Kiseki no Umi single from Record of Lodoss War TV, because that is hands down the best vocal song she has ever written. (The actual soundtracks are by Kaoru Wada though, so ignore those)
After that, I dunno, try
Please Save My Earth,
Brain Powerd,
Macross Plus,
Escaflowne (3 albums plus a movie soundtrack) and
RahXephon (another 3 albums and a move soundtrack), just to start. Then try out her most famous anime music work:
Cowboy Bebop (3 albums plus a movie soundtrack -- are you seeing a pattern here yet -- plus supplementary vocal albums) and
Ghost in the Shell: Stand Alone Complex (6 soundtrack albums in a boxset). I really like the songs in
Wolf's Rain, too. You'd probably like it too because it's one bloody depressing soundtrack.
Then you can try
Macross Frontier (2 albums plus singles) to get up to speed.
Jam it back in, in the dark.