Hey, I'm currently about 3/4's of the way through Lynda.com Objective C's essential training and am really enjoying it so far. My goal is like many programmers is to use these skills to make an ios game. Currently the only other tutorial that Lynda.com is hosting is a Cocoa essential training video for Mac osx development. I'm really enjoying the the style of teaching and the production of the Lynda.com videos and I was wondering.

Will learning Cocoa before Cocoa touch be a major help? Or would it be MORE beneficial to rather just focus on my main goal and learn Cocoa touch.

Thanks for the advice. :)

Also what topic prefix would I put Objective-C under?

There are other tutorials on Lynda.com related to cocoa touch. There is one on core graphics, one on xcode shortcuts(this one is really out of date) and one on iPhone development. Of course there are a couple of others on C and C++ all of which are relevant when developing iOS apps. Not to mention that if you are into ios game dev they allso have a Unity for iOS series too.
If you want to develop iOS stuff you should just jump in. Your question however doesn't really make sense though as learning any software development skills are always benificial.

But the question seems similar to questions like: "Is it beneficial to learn C before C++?"

Yes and No. People usually ask the C C++ question because they think that as C++ was a superset of C then you must fully understand C before learning C++ which isn't true. Anybody who frequents these boards will realise that the answer os always NO you don't NEED to know C before C++ but on the otherhand having knowledge of several language is never a bad thing.
Cocoa and Cocoa Touch however are the same API with minor tweeks for touch. It'd be more like should I learn C# for WinForms or for the web. The answer is it doesn't matter. If you want to be a good C# developer then learn both.

Cocoa and Cocoa Touch however are the same API with minor tweeks for touch.

A bit more then that, the whole ui and app framework is rewritten from scratch in cocoa touch, and even though there are a lot of similarities, they differ quite a bit.

There is this lib called chameleon that wraps the cocoa framework in something that looks like cocoa touch (for easy porting of iOS apps to OSX), but its not complete, and studying can give some insights in what differs.

But a lot of the classes, specially anything not directly ui-related, is (more or less) the same, so you are definitely helped by cocoa knowledge when starting with cocoa touch.

There is nothing that says you have to learn one before the other though.