Best wordpress membership plugin?

hey guys, just need some advice, heres the scenario:

my big brother has been making a living "laying" horses on Betfair.com: Online Betting, Sports Betting, Horse Racing, Football | Bet Poker, Casino & Games for the last 5 years. i personally think that "backing" horses is a mugs game because its hard to pick a winner from x number of horses, but laying is so much easier because you just have to pick a loser. Anyway my bro has developed a laying system which has a 90% success rate, hes making on average 7000 euros per month consistantly, he has a specific staking plan which he designed so that any short term loss will be recouped over the long term. Anyway i suggested to him that he start a lay tipping service, now he is not very tech minded so i told him i would set it up for him on wordpress. basically members would pay x amount of money per month and have daily lay tips available on the site when they login

what i need from you guys is recommendations for a WP membership plugin that integrates with paypal. the best looking 1 i have seen so far is wpmember but i would really like to hear your suggestions. we want something that will manage subscribers, for example if someone cancels their membership, they will automatically be locked out of the site, also would like a plugin that only allows x number of ip address logins from one subscriber(to stop people sharing details with friends etc) would be handly if a plugin is available that would automatically mail subscribers their login details as soon as they make their payment to paypal. somethig that is not too complicated to use

i have told you the concept of what my bro plans to do,

would love to hear your recommendations guys because my bro has quite a few people ready to subscribe to this site when its up and running

thank you kindly

Sarah

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