well i just got my gc and i read that theres a n64 emu for it and i'm wondering if its any good?

I honestly haven't tried it yet. There's a bug with the Cobra bios that doesn't allow loading of.dol files that big.
If this is fixed soon, I'll let you know.

I doubt it would be any good, since i'm pretty sure its still fairly new.

Actually, it was developed by Nintendo. They used it to emulate Legend of Zelda, Masterquest.

hadn't even heard about that... someone try it and let me know how it is because i'm lazy and... nevermind i'll figure something out