Max is huge right now and theres alot of hash power pointed at it atm. At its current difficulty you would probably get 2-5 coins a day with your 5870 (about $10AUD at current prices). CPU mining is probably not going to be worth it versus electricity costs.I set up a cpu only mining thing and a wallet on coins-e as per the instructions here:
I have a 5870, not sure how good that will be as a gpu for mining.
That being said I've made around $600 the past 2 days thanks to max kesier but I was also one of the few who mined it at the start instead of yelling scam like 95% of the crypto community.