Yeah man, I've been a member of this forum for a long time obviously before I got my Macbook Air I just stayed in the iPhone and iPad forums but now since I have the MBA and Lion I can spread to these parts of the forum.
I did a search and didn't find anything so I guess it's not a real big issue, I'm sure ill figure something out.
I've been on the Mac since System 8 so I've been through major changes in the system. I'm going to give you the most helpful advice in regards to you starting out on Mac OS X, coming from Windows. The advice is don't look at this as a "learning curve". What seems to be the obvious "IS". Just do what you normally do on Windows. For example, I would like to think that you would just drag the picture in your email to desktop or the photo editing program of your choice in Windows as you would do in Mac. That really shouldn't be any different.
Most of the basic stuff is the same. You go into the Finder as you would do Explorer and drag your files or cut n paste them to the places you want them.
What you'll find different and far easier and IMO more superior is the way Macs install applications. Again, no learning curve. Upon installation, most of the developers show a static picture of where to drag your new application and it self-installs.
Some of the features on your iPhone are on your new Mac so you should be familiar with those features. As for the rest, you should do yourself a big service and try and figure it out as you did in Windows. You shouldn't need anyone to really walk you through.
You might want to come here for software recommendations but running the system should be something you should try and learn. I'm 99.9% sure that within a month you'll say that it was much easier than you thought. It can't be hard to learn, you already have an iPhone.