Well, today I just beat LttP, and after using my handy-dandy-Firefox-site-search (typed in "zelda"), I discovered some extra Zelda games released on the BS-X (a sort of Sega Channel thing, read at the site for more info).
http://bszelda.zeldalegends.net/BS Zelda 1 is essentially an edited Zelda 1 with updated graphics, much like the Super Mario Bros. make-over in Super Mario All-Stars. The second is A game seeming not to star Link at all but to star either a boy or a girl. It seems to be a Zelda game written with the same engine.
For those out there who want to make their own Zelda game using the LttP engine, there's a little program that does great wonders, Hyrule Magic.
http://www.zophar.net/utilities/download/hmagic.zipAnd lastly, here's a thread on another forum where some users posted their own home-made hacks.
http://board.acmlm.org/thread.php?id=4557&page=0I know there's plenty of hard-core gamers here, and I hope I've helped in some way to aide your passion.
My List. Remember, everything can be bought, for a price.