the real question here isnt fi you should get a rack or stay with cages.
the real question is how many more animals do you plan on buying?
do you enjoy veiwing your snakes daily?

racs are meant for breeders and collectors who have lots of animals and need more space, they are just tanks that have been optimized for space, ease of cleaning and movability.

if all you plan on having is those 2 snakes your best bet is a neodesha(sp?)
cage or a vision setup. both are attractive dispaly cages.
either way if their in the same tank you need to seperate them pronto
adam jeffery