Thanks for your replies, everyone. Very helpful, though I must admit, I still haven't really decided exactly what to do. I've tried Cathay before in 2000, on their "special edition" millenium plane with pictures of children painted outside of the plane, and yes, I agree, the economy seats were a bit cramped. However, I've heard only good things about JAL, so I've decided to give them a try.
In reply to bigtiger:
Are you sure that fetches a first class ticket? My travel agent said that he was giving me a
great deal for business class (on JAL). Other travel agents have told me the same. Do you know where by any chance I could get even cheaper flights (even thought it's a bit late now!)?
In reply to Ed:
Thanks for the VERY helpful advice. Fortunately, I probably won't have too much time to go on a spending frenzy.
And, yeah, I know that lust.

I'll probably bring back some little gadget or two before my stay there ends. With any luck, I won't get cheated!
In reply to GomJabber:
Thanks for the link. I'll be sure to peruse it and see little tidbits I can get out of it..
Let's hope I arrive back home safely...!