Thanks Guys,
Yeah i think i'll just use it and if it gets too mauled up by me learning how to handle a hammer then i'll just mill it and put a plate of bisalloy on top. we have heaps of them, use them as wear plates on our skid pumps.
I took to one with a lump of steel and could'nt put a mark on it, so it should be tough enough for an anvil. ;-)
Was'nt going to put a hardy hole in it, too much messing around for me ;-) I'll just make up tooling to suit my pritchel hole, its 25mm so should be strong enough, and i'll make somthing to hang over the end of the anvil so it does'nt rotate while using it. sound like a plan?? It'll do for a first i guess, one day i might make a big one when i have the time and the steel, maybe aroung 250-300kgs with all the bells n whistles. there i go, dreaming again.
Anyway, thanks for all the great coments, makes all the hard work worthwhile.
Cheers, rad... :-)