Perhaps you should consider at what level are you going to be using the purchased equipment. i.e. are you a professional-wannabe or just someone who's going into this as a hobby? If the latter, then either of the two systems you've listed and also including the other ones e.g. Sony Alpha, Pentax, Olympus, will meet your needs fine.
As someone's pointed out - unless you're intending to buy the expensive lenses, the cost difference between systems for the consumer grade lenses that are adequate for many hobbyists aren't significant... and that's not even considering third party lenses yet.
And as for color rendition, you can handle in post-processing later.
IMO - other considerations you could be having can be trying the various bodies at shops to see what works for you (this is a personal thing that varies from user to user), and checking around your work place / office / school to see if there are other persons using similar systems (I have 4 colleagues within 20 metres who're all Nikon DSLR users) so you can share information, yak, chat, 'loan'.