!!!!!!!PLEASE HELP ME!!!!!!!?

My husband spends all night on the computer. he deletes the history every night but i have found a way of seeing what he was doing on it if he saves a picture i can find it with out any effort. well every night he has been saving pictures of his ex's and nude celeb pics. i have caught him doing this before and told him it was wrong and i concidered it cheating. then i go on my computer in the morning and there is yet again another woman naked or half naked saved on my computer.. and the thing that hurts the most is he knows how much i disapprove of it and of watching but he still does it... now im not just talking about naked stars (which he has on here too) but also people from his facebook people he knows.. well he always denies it and says it must have been a web site he went on to that "conviently" saves naked pics in a folder he named and the pics are saved with names he names. he is always saying that i have or am cheating on him which i have not nor would i but when i turn it around on him he gets really pissed and starts punching holes in the wall flipping out because i mentioned it. now i have found emails to his ex that i absolutly hate saying how much he still loved her (he denied that too saying his neice sent them from his email). we have been married for 5 years and there has never been trust. we have 1 kid together and his son lives with us full time. i concider him cheating because hes looking at another person naked (been to a strip club too and had his bare touched by the stripper) but he lies about it when i say something. im afraid when i go shopping or something hes doing more than being on the internet looking.. i think hes talking to someone too.. and hes always checking my facebook or if he goes shopping with me and i look anywhere but down while walking and a man pes my viewing path he asks who the hell was that you know that person? stuff like that. and just a little insite to his behavior he hasnt worked but 9 months since i have known him, wont let me work, for fear i will cheat on him (WTFE) , i do everything for him cook clean take care of his and our kid, just about everything but bathe and wipe his ***, even on mothers day i did everything and got nothing in return. most time i feel like a maid and childcare provider more than anything.. and when he saves these pictures its never on random days but on the days we have or i plessure him... im fed up with it but dont know how to bring it up with out exploding this time...(have said something ever time i find them and he lies about it saying they are not there or someone else did it or he went to a page that must have saved them( in a hidden folder in his files)) im fed up with it and feel it is cheating... please help me