What would you go with
cwihosting unix 1.2 gig plan
or ***** special unix 3 gig plan?

Neither, not with the eputations those two hosts have, just do a search on these boards and youy will see. I have no intention of even thinking about signing up with them.

Stay away from both. I was a ***** victim, and it was my bad experience with them that prompted me to put up a page on finding a web host, in order to help other people avoid a similar situation. CWI Hosting is also on my "avoid" list, due to the many, many complaints I've seen about them. See the last link in my signature for the complete "avoid" list.

Worst support ever seen.

I guess you have your answer. But looking for that much storage you might want to consider a dedicated server. Just for the stability, security, speed that comes with a server for a site that size, a ded might be a better option.