You are right to question the "deal". You can almost never house chams together, so would have to buy 2 complete setups. Even one cham can take quite a bit of daily attention, so ask yourself how much time you can spend caring for this type of pet every day. Remember that chams are not that social and it won't want to spend time with you necessarily. Also, IMHO a 65 gallon Reptarium is too small for an adult veiled. You'll probably end up building or buying a larger cage. The UVB lighting they offer with the deal may or may not be the best choice (what do they offer?). From your reading you've probably found out that chams need 2-3 sessions of hot water spraying, cage cleaning, caring for the live potted plants in it, checking temps and humidity, hand feeding or placing feeders in a bowl or bin, dusting feeders, observing for signs of illness, etc. You'll need to spend time caring for all the live insects they need as well (preparing gutload, cleaning the bin, etc). And, if you try to feed your cham a good variety of insects you may end up with cultures of crix, superworms, roaches, silkworms, hornworms, houseflies, etc. Just in case you haven't found these yet, here are some really good sites to read. I don't mean to sound totally negative, but want to help you avoid getting into more than you are ready to take on.
www.adcham.com, www.chameleonjournals.com, www.calumma.com, www.geocities.com/ccicenter.