Install my new version of CruxEX 3.0 64bit from 130626 to a USB Pen Drive and save your system changes – read this INSTRUCTION. If you later on decide you want to install CruxEX to hard drive from the USB Pen Drive all your system changes will also be installed to the hard drive. In case of a hard drive installation you can use Grub2 as boot loader.
About CruxEX 3.0 version 130626
All packages have been upgraded to the latest available version (with prt-get sysup). This means (for example) that Firefox is in version 21.0. Furthermore: This version uses kernel 3.9.6!