IM starting to think about cutttlefish but most likely I will get an octopus first does any one have an good info before I buy one of these magnificant creatures like tank size Im going to cheak the care sheets on them but any info would be greatly apreaceated

A great place to start is here:

http://www.tonmo.com/cephcare/cuttlefishcare.php

I, too, am hoping to keep cuttles in the next year or so...but have to wait until we move...sigh...
greg