aye, i mean, let's be honest, if i were willing to go to £450 for a peavey, i'd probably just cough up the other £150 for a cornford...
in the cheapo tube amp stakes, there's the VJ, fender champion, peavey nanovalve, peavey valveking royal 8, that harley benton one, and maybe the peavey windsor studio (but it's not out for a while)....
that's what i'd probably be looking into... EDIT: cr@p, and matamp. lol. but that's more like £250-£300, so other things come into play then, like laney etc. (though i suspect matamp is a lot better).