Ok... as far as I know, Cell has the following attacks:
-(1) Melee Attack
-(2) The Ki Blast Attack
-(3) The Generic Beam Attack
-(4) The Gallit Gun, The Kamehameha Wave, and the Special Beam Cannon. (Press 4 several times to cycle through them in game.)
-(5)...(6) The Frieza Disc (I don't know the exact number, but he has the Disc attack.)
-(9) The ability to use Senzu Beans. (No, it's not an attack but it needs to be stated.)
-As for the Senzu Beans themselves, they are found in fairly large, light brown bags around the levels. Check in the other sections of the main forum for posts on Senzu Beans, I know for a fact that there are several more which may contain the answers you seek.
Have fun.