The rest of eclipse phase is a really heady game, that makes you think. It has the feel of potential near future that Shadowrun or Cyberpunk did in the 80's. The rules are fast and easy. The setting is now really getting fleshed out with gatecrashing, rimward and sunward.
The kick starter gives you a great opportunity to get into the game without a big initial cost. If you look at the $60 and $30 backer level you are getting a bunch of pdf's for a low entry fee. I have the hardcovers for all the books except rimward, they are not cheap. They are nice quality books but cost a fair amount. If you go with these PDF options you can get into the game easily and cheaply.
Go with the $60 investment if you are new to the system as it gives you the core rules in pdf form along with other books. I think the $30 is great if you already have the core rules. You change check it out here