i will work on it right now:
currently no mobs!

Possibly the Biggest mob pack ever!!!!???

have you made a farm?
have you wanted a different pig,cow or chicken?
have you made a castle?
do you want a knight?
have you...........
^ this pack answers everything!

updated daily!

Note: its at 100% because i will always update it!
ONLY Mobs are edited! so you can still make weapons and armour!

Requires: Optifine: and maybe modloader?
Download below:

http://www.minecraftforum.net/topic/249637-147-optifine-hd-b6-fps-boost-hd-textures-aa-af-and-much-more/