Atmel FLIP(Flexible In-system Programmer) - BatchISP(FLIP) is a command line tool for programming the flash and EEPROM memories of the AVR and is part of the FLIP installation. It can be used to communicate with the preprogrammed USB DFU bootloader.
Atmel Studio® (free Atmel IDE). - Atmel Studio is the programming/debug platform.
Atmel AVR JTAGICE mkII(on-chip programming and debugging tool). AVR JTAGICE mkII is a mid-end debug/programming tool that can be used for code development with the RZ600 kit.
Atmel AVR ONE!(on-chip programming and debugging tool). AVRONE! is a high-end debug/programming tool that can be used for code development with the RZ600 kit.
AVR Dragon is a low-end debug/programming tool that can be used for code development with the RZ600 kit.
AVR Toolchain(Free C/C++ compiler for 8/32-bit AVRs). This is a free C/C++ compiler (GNU Toolchain) that can be downloaded from Atmel's webpage. It integrates with the Atmel Studio.
IAR Embedded Workbench® for Atmel AVR. This is a commercial C/C++ compiler that is available for 8-bit AVR. There is a 30 day evaluation version as well as a 4k (code size limited) kick-start version available from their website.