A few questions before I order

[thaivisitor]

I also have a few questions before I purchase.

I want to have a website which will also need members registration and inside my website, I would like to have a forum.

What I want is also for the members to log in into my website to be able to access the info there, like a member's lounge which will include the forums. I don't want to have another registration into the forums and another seperate logging in.

I have written to vBulletin Support and got this reply so that's why I'm here.

Integrating vBulletin with a non-vB member system would require a
rather extensive modification of the code. Of course, we cannot provide
official support for code modifications. What most people do is modify
their current system to use the vB member system.

Either way the place for help with this would be over at the mod site:
http://www.vbulletin.org/

Once you register you can post in the Pre-Sales forum there.

Is there a ready made system which uses the vB member system whereby I can purchase or something like that?

I have not purchase any web hosting services yet as I want to make sure of all this before I do so.

By the way, I'm not IT savvy so I won't know how to do it myself. I'll be engaging a web designer to do up my website.