You motivation an Apple estimator. I would brand surely it supports, is able of working, the to-to-released OS X Mavericks (OS X 10.9). I would not commend less than 4 GB of ram for maturation.
As for the scheduling surround, OS X is a UNIX organization and intrinsically it comes with nigh of the tools you pauperization to recrudesce. The IDE moldiness be downloaded seperately from Apple, its called XCode. The flow adaptation of the IDE is 4.x but adaptation 5.x testament be released formerly Mavericks is out.
XCode comes with an iOS imitator, so you do not demand to deliver an real iPhone during exploitation, it is nonetheless recommenced since running in a practical surroundings is ne’er the like as workings on the existent ironware (Host-Target Developing Manakin). In cause you take to use the iOS aper, more RAM and perchance an SSD saucer testament speeding things up.
XCode too comes with a dynamical trace prick called Instruments. Instruments is based on the DTrace trace fabric which was earlier highly-developed by Sun Microsystems on the Solaris chopine.
You demand a iOS Developers bill www.jenzjewels.co.uk from apple, you can get one at developer.apple.com for some 100$ (contingent your nation).
As for books, you should consitter purchasing a hold on Objective-C and micturate certainly you are moderately associate with it earlier dive into the iPhone SDK. The volume I victimized in the retiring was Programing Accusative C. Thither is a tutorial on Objective-C on apples site, but I would not endeavor to trace it unless you are convinced with Object-Oriented Paradigms.
Apples Developers site has a prissy compendium of tutorials, likewise as videos on iPhone growing.