Though I have to say that though chondros are not difficult to keep, they require more attention to keep them healthy and happy than do many other snakes. Their needs are not many, but they do need to be understood and catered to for your and the animals' success.
Are you up to the task of daily, or possibly twice daily mistings to keep their humidity around the right levels?
Are you willing to leave them alone most of the time? Although many chondros can be very calm and tolerate moderate handling, they are not Ball Pythons. Over handling can easily stress out a chondro, and they are best kept as display snakes. Pulling them out and playing with them should be on the bottom of the priority list.
Are you willing to invest in the proper caging, handling, and heating equipment? This alone can be a hefty investment.
Are you willing to invest in the cost of a quality CBB chondro from a reputable breeder? This is one of the big questions, and in my opinion, one of the most important. If you aren't willing to, or can't afford to spend $400 on true CBB well started babies from a good breeder and you would prefer spending $275 on that fresh import, then are you willing to spend the additional fees you will incur in vet bills to get the snake checked out and treated for possible ailments that plague imported chondros(this is something you should plan ahead for anyway, as no matter what, sometimes animals DO get sick)? Chondros are a definite, "you get what you pay for" animal. I am not trying to be elitist or anything against those that DO have imports(I have several myself), but imports are cheap for a reason, and you will make up the difference very quickly on the initial cost in vet bills.
As Julian and the others here have said, I would recommend ALOT of reading and thinking before purchasing that first chondro. Greg Maxwell's book, "The Complete Chondro," is a good reference and resource, and I highly recommend spending the $45 on it before plunging into chondros headlong. Or at the very least check out some of the care info on his website, it is good solid stuff and will let you know just what it is you are getting into.
Best of luck!!!