Ok, I tried to find a way to change the nameservers on Wix and it looks like they don’t allow anyone to do that. Here is what I found: Wix: "Unfortunately, it isn’t currently possible to change the name servers of a domain through the Wix Domain Manager.
If you wish to change the name servers of a domain purchased through Wix, you’ll have to first transfer the domain to a different host.
To transfer a Wix domain: Sign in to your Wix account > from the top menu, hover over Subscriptions > click Domains > click Manage next to the relevant domain.
Under Domain Summary, click the Advanced tab > on the right, click Transfer away from Wix > click Send.
An email code will be sent to your email address. This code should be forwarded to your new domain host."
So, I guess I just need to know what to do on the DreamHost end to transfer the domain name over to you guys.
…and actually I think I found all the info I need in that link that patricktan posted.