13.04: Which version to install and when?

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http://askubuntu.com – I'll soon get a new notebook with an Intel Core i7 (3rd gen) processor. I would like to install 64bit Ubuntu 13.04 on the notebook and have the following questions: Would one choose to install the "PC (Intel x86) desktop image" or "64-bit PC (AMD 64) desktop image" (see http://cdimage.ubuntu.com/daily-live/current/)?. As far as I know, only the latter is 64bit. Is that true? [I'm asking since only the former says 'Intel' while only the latter says '64bit', so I'm not sure which is the right one in my case.] Apart from bugs... is there any problem in installing 13.04 now (a month before the o (HowTos)